bluuebunny/crossref_metadata_2025_split huggingface dataset:
Critical aortic stenosis in a patient with a large saccular abdominal aortic aneurysm
Authors: Drury‐Smith Mark , Garnham Andrew , Khogali Saib 
Published: March 2012

AbstractElderly patients with aortic stenosis are often deemed too high risk, and consequently turned down for conventional surgery. Transcatheter aortic valve implantation (TAVI) is a safe and an increasingly attractive option in this group of patients. Although TAVI has been shown to be successful and safe, the cardiovascular assessment of other co‐morbidities in this susceptible group of patients is critical to ensuring good clinical outcomes. The presence of a saccular abdominal aortic aneurysm (AAA) in our patient was an example of an important co‐morbidity which could have a significant impact on the outcome of TAVI, if not managed appropriately. The increased systolic pressure post successful TAVI will result in an increased strain within the wall of the saccular AAA with an increased risk of rupture. Therefore, a timely management strategy for the AAA was necessary. We believe that we report the first case of simultaneous TAVI and endovascular aneurysm repair (EVAR). The patient underwent uncomplicated transfemoral TAVI immediately followed by successful drive‐by percutaneous EVAR delivered over the same superstiff guidewire via the transfemoral route. Our case highlights the importance of a detailed assessment in all patients before consideration for TAVI, and the multi‐disciplinary team and a management strategy for both pathologies tailored to the patient. The case demonstrates the versatility of trans‐catheter techniques which has enabled the treatment of aortic stenosis and abdominal AAA in a single procedure. © 2012 Wiley Periodicals, Inc.
Early beneficial effects of drug‐eluting stents in vein grafts wane during long term follow‐up
Authors: Pasceri Vincenzo , Tarsia Giandomenico , Niccoli Giampaolo , Viceconte Nicola , Porto Italo , Leone Antonio Maria , Trani Carlo , Speciale Giulio , LIsanti Pasquale 
Published: March 2012

AbstractObjectivesThe aim of the study was to compare outcomes of drug‐eluting stents (DES) versus bare‐metal stents (BMS) in saphenous vein graft (SVG) interventions in a case–control study with a long‐term follow‐up.BackgroundSafety and efficacy of DES in SVG interventions are still controversial.MethodsWe performed a multicenter registry assessing clinical outcomes with DES vs. BMS. We included 311 patients (239 men, age 68 ± 8 years) who underwent percutaneous coronary interventions (PCI) of SVG lesions with DES (n = 138) or BMS (n = 173) with a 2‐year follow‐up.ResultsThe two groups were similar for age, sex, main risk factors, incidence of diabetes, use of IIb/IIIa antagonists, use of aspiration devices or filters, number of stents, and total stent length. Overall, at 9 months follow‐up incidence of major adverse cardiac events (MACE) and target vessel revascularization (TVR) were significantly lower in the DES group compared with the BMS group (10.9% vs. 22.0%, P = 0.014 and 8.7% vs. 19.1% in DES and BMS respectively, P = 0.015), while there was no significant difference in incidence of myocardial infarction (5.1% vs. 5.2%, P = 0.96) or death (2.2% vs. 4%, respectively, P = 0.54). However, at 24‐month follow‐up incidence of MACE was 29.7% in the DES group and 37.0% in BMS group (P = 0.29); incidence of TVR (23.2% vs. 28.9% P = 0.39), myocardial infarction (9.4% vs. 9.2%), death (7.2% vs. 6.9%) were also similar in the two groups.ConclusionsAlthough DES appear safe, our findings suggest that the early benefit of DES in SVG may rapidly wane during long‐term follow‐up. © 2012 Wiley Periodicals, Inc.
Safety and efficacy of balloon pulmonary valvuloplasty
Authors: Holzer Ralf J. , Gauvreau Kimberlee , Kreutzer Jacqueline , Trucco Sara M. , Torres Alejandro , Shahanavaz Shabana , Bergersen Lisa 
Published: March 2012

AbstractBackgroundBalloon pulmonary valvuloplasty (BPV) is the treatment of choice for patients with pulmonary valve stenosis (PS); however, safety and efficacy outcomes are lacking in the current era.MethodsDemographic, procedural, and adverse event (AE) data were prospectively collected using a multicenter registry (C3PO) and cases performed between 02/07 and 06/10 at eight institutions. The registry was queried for cases of isolated BPV. Multivariable models were built to determine risk factors for procedure failure and adverse outcomes.Results211 cases were included (45%, <1 month). Procedural success was achieved in 91% procedures, being defined as one or more of the following: post‐BPV peak systolic valvar gradient to < 25 mm Hg (88%), decrease in gradient by 50% (79%), or reduction of RV/systemic pressure ratio by 50% (45%). Procedural success was more common in neonates, when compared to older patients (96% vs. 87%, P = 0.03). Risk factors for procedural failure included moderate or severe pulmonary valve thickening (OR 2.9, CI 1–8.3), and presence of supravalve PS (OR 9.6, CI 2.7–33.8). Low severity AEs (levels 1–2) occurred in 9% of patients and higher severity AEs (levels 3–5) occurred in 3% of patient; there were no deaths. Risk factors for any AE (levels 1–5) were age below 1 month (OR 3.5, CI 1.3–8.9), as well as operator experience of less than 10 years (OR 3.8, CI 1.5–9.9).ConclusionsProcedural success is common and AEs, especially higher severity AEs, are rare for BPV in patients with isolated PS. Results have improved considerably when compared to historical data. © 2012 Wiley Periodicals Inc.
Right versus left transradial approach for coronary catheterization in octogenarian patients
Authors: Freixa Xavier , Trilla Marc , Feldman Matías , Jiménez Marcelo , Betriu Amadeo , Masotti Mónica 
Published: March 2012

AbstractObjectives: The aim of the study was to evaluate if the left radial approach (LRA) confers any additional advantage compared to the right radial approach (RRA) in octogenarian patients who undergo a coronary diagnostic procedure. Background: Octogenarians, an increasing segment of patients in our society, present a higher risk of access‐site complications related to invasive coronary catheterization. Transradial approach has been shown to be an effective alternative to reduce vascular complications. Although some studies have suggested that elderly people might benefit from a LRA, the advantages of using the left or right radial access remain not clear. Methods: One hundred octogenarian patients undergoing a transradial coronary angiogram with normal Allen test and without previous history of coronary artery by‐pass grafting were randomized to either LRA (n = 50) or RRA (n = 50). The primary end‐points of the study were procedural and fluoroscopy times. Results: Mean age was 82.6 years (80–88) and 59% were males. Procedural and fluoroscopy times were similar among study groups. Crossover was required in two patients (4%) with RRA and five patients (10%) with LRA (P = 0.24). Subclavian tortuosity was more frequent in the right side (32% vs. 6% in the left side; P = 0.002) but this difference did not translate into longer procedural or fluoroscopy times or higher cross‐over, procedural difficulty or wire manipulation. Conclusions: In our series of octogenarian patients, the LRA was a valid alternative for diagnostic procedures but its usage was not associated with a significant reduction in procedural and fluoroscopy times compared to the RRA. © 2012 Wiley Periodicals, Inc.
Prevalence and echocardiographic features of iatrogenic atrial septal defect after catheter‐based mitral valve repair with the mitraclip system
Authors: Smith Thomas , McGinty Patrick , Bommer William , Low Reginald I. , Lim Scott , Fail Peter , Rogers Jason H. 
Published: March 2012

AbstractObjectives: Review the prevalence, echocardiographic features and potential predictors of iatrogenic ASD (iASD) created with the MitraClip guiding catheter. Background: Catheter‐based repair of mitral regurgitation (MR) with the MitraClip device (Abbott Vascular, Menlo Park, CA), is performed through a 22‐French transseptal guiding catheter. The echocardiographic prevalence of iASDs after the MitraClip procedure has not been reported. Methods: Thirty subjects undergoing MitraClip repair during the roll‐in phase of the EVEREST II randomized trial who had baseline, 30 day, 6 and 12 month transthoracic echocardiograms (TTEs) available for review were included. Patients who underwent surgery for MR within the first 12 months were excluded. Residual iASD size, right ventricular (RV) size, left atrial (LA) volume, and tricuspid/MR grade were quantified. Results: iASDs were found at 12 months in 8 patients (27%) with a mean diameter of 6.6 ± 3.1 mm. Subjects with iASD at 12 months had more residual MR, increased TR and a trend toward larger LA volumes than non‐iASD patients. 83% of non‐ASD patients were free from MR > 2+ at 12 mos. vs. 38% of those with iASD (p=0.016). There were no other significant associations between clinical and echocardiographic variables and the persistence of iASD. Conclusions: After MitraClip repair, persistent iASDs occur at a rate comparable to reports after other transseptal interventional procedures and do not appear hemodynamically significant. Patients with persistent iASDs had less MR reduction at 12‐months and a trend toward larger LA volumes, suggesting that increased LA pressure may be a mechanism for persistent iASD. © 2012 Wiley Periodicals, Inc.
A multicenter randomized comparison of drug‐eluting balloon plus bare‐metal stent versus bare‐metal stent versus drug‐eluting stent in bifurcation lesions treated with a single‐stenting technique: Six‐month angiographic and 12‐month clinical results of the drug‐eluting balloon in bifurcations trial
Authors: Stella Pieter R. , Belkacemi Anouar , Dubois Christophe , Nathoe Hendrik , Dens Jo , Naber Christoph , Adriaenssens Tom , van Belle Eric , Doevendans Pieter , Agostoni Pierfrancesco 
Published: March 2012

AbstractBackgroundPercutaneous treatment of coronary bifurcation lesions remains hampered by suboptimal results, mainly in the side branch (SB), even with the use of drug‐eluting stents (DES). Paclitaxel drug‐eluting balloons (DEB) could provide an attractive alternative to treat bifurcations in combination with a provisional T‐stenting technique in order to minimize SB restenosis. We compared angiographic and clinical outcomes of a provisional T‐stenting technique with a DEB plus bare‐metal stent (BMS) versus BMS versus paclitaxel DES.MethodsIn this randomized, international, multicenter, single‐blinded 3‐arm study, 117 patients with coronary bifurcation lesions underwent treatment with: (A) DEB in both main branch (MB) and SB and BMS in MB; (B) BMS in MB and regular balloon angioplasty in SB; or (C) paclitaxel DES in MB and regular balloon in SB. All patients underwent provisional T‐stenting with an identical stent platform in the MB. Paclitaxel was the drug for elution in groups A and C. The primary endpoint was 6‐month angiographic late luminal loss. Secondary end points were 6‐month binary restenosis and 12‐month major adverse cardiac events (MACE: death, myocardial infarction, target vessel revascularization).ResultsThe procedure was successful in all cases. Late luminal loss, measured respectively in the proximal MB, distal MB and SB was 0.58 ± 0.65, 0.41 ± 0.60, and 0.19 ± 0.66 mm in group A; 0.60 ± 0.65, 0.49 ± 0.85, and 0.21 ± 0.57 mm in group B; and 0.13 ± 0.45, 0.19 ± 0.64, and 0.11 ± 0.43 mm in group C (P = 0.001). Binary restenosis rates per bifurcation and MACE rates were 24.2%, 28.6%, and 15% (P = 0.45) and 20%, 29.7%, and 17.5% (P = 0.40) in groups A, B, and C, respectively.ConclusionsPretreatment of both MB and SB with DEB failed to show angiographic and clinical superiority over conventional BMS, using a provisional T‐stenting technique. Moreover DES showed superior angiographic results than DEB and BMS. © 2012 Wiley Periodicals, Inc.
1H,89Y HMQC and Further NMR Spectroscopic and X‐ray Diffraction Investigations on Yttrium‐Containing Complexes Exhibiting Various Nuclearities
Authors: Löble Matthias W. , Casimiro María , Thielemann Dominique T. , Oña‐Burgos Pascual , Fernández Ignacio , Roesky Peter W. , Breher Frank 
Published: March 2012

Abstract2D 1H,89Y heteronuclear shift correlation through scalar coupling has been applied to the chemical‐shift determination of a set of yttrium complexes with various nuclearities. This method allowed the determination of 89Y NMR data in a short period of time. Multinuclear NMR spectroscopy as function of temperature, PGSE NMR‐diffusion experiments, heteronuclear NOE measurements, and X‐ray crystallography were applied to determine the structures of [Y5(OH)5(L‐Val)4(Ph2acac)6] (1) (Ph2acac=dibenzoylmethanide, L‐Val=L‐valine), [Y(2)(OTf)3] (3), and [Y2(4)(OTf)5] (5) (2: [(S)P{N(Me)NC(H)Py}3], 4: [B{N(Me)NC(H)Py}4]−) in solution and in the solid state. The structures found in the solid state are retained in solution, where averaged structures were observed. NMR diffusion measurements helped us to understand the nuclearity of compounds 3 and 5 in solution. 1H,19F HOESY and 19F,19F EXSY data revealed that the anions are specifically located in particular regions of space, which nicely correlated with the geometries found in the X‐ray structures.
Calcium Carbonate–Gold Nanocluster Hybrid Spheres: Synthesis and Versatile Application in Immunoassays
Authors: Peng Juan , Feng Li‐Na , Zhang Kui , Li Xing‐Hua , Jiang Li‐Ping , Zhu Jun‐Jie 
Published: March 2012

AbstractFluorescent gold nanoclusters (AuNCs) were incorporated into porous calcium carbonate spheres through electrostatic interaction. The resulting CaCO3/AuNCs hybrid material exhibited interesting properties, such as porous structure, excellent biocompatibility, good water solubility, and degradability. These properties make the CaCO3/AuNCs hybrid material a promising template to assemble horseradish peroxidase/antibody conjugates (HRP‐Ab2). By using CaCO3/AuNCs/HRP‐Ab2 bioconjugates as probes, a versatile immunosensor was developed for fluorescent and electrochemical detection of the cancer biomarker neuron‐specific enolase (NSE). The detection limits of the sensor were 2.0 and 0.1 pg mL−1 for fluorescent and electrochemical detection, respectively. The immunosensor shows high sensitivity and offers an alternative strategy for the detection of other proteins and DNA.
Thieno[3,4‐b]thiophene‐Based Organic Dyes for Dye‐Sensitized Solar Cells
Authors: Chen Yung‐Chung , Chou Hsien‐Hsin , Tsai Ming Chih , Chen Sheng‐Yu , Lin Jiann T. , Yao Ching‐Fa , Chen Kellen 
Published: March 2012

AbstractNew dipolar sensitizers containing an ethyl thieno[3,4‐b]thiophene‐2‐carboxylate (ETTC) entity in the conjugated spacer have been synthesized in two isomeric forms. These compounds were used as the sensitizers of n‐type dye‐sensitized solar cells (DSSCs). The best conversion efficiency (5.31 %) reaches approximately 70 % of the N719‐based (7.41 %) DSSC fabricated and measured under similar conditions. The ETTC‐containing compounds exhibit a bathochromic shift of the absorption compared to their thiophene congeners due to the quinoid effect, however, charge‐trapping at the ester group of ETTC was found to jeopardize the electron injection and lower the cell efficiency. Charge trapping is alleviated as the ester group of ETTC is replaced with a hydrogen atom, as evidenced from the theoretical computation.
Efficient Intracellular Delivery of Camptothecin by Silica/Titania Hollow Nanoparticles
Authors: Kim Chanhoi , Kim Sojin , Oh Wan‐Kyu , Choi Moonjung , Jang Jyongsik 
Published: March 2012

AbstractSilica/titania hollow nanoparticles (HNPs) with 50 nm were fabricated by using the dissolution and redeposition method and modified with anti‐[human epidermal growth factor receptor 2] monoclonal antibody (herceptin), and their application as camptothecin (CPT) delivery agents to human breast cancer SK‐BR‐3 cells was investigated. Although the diameter of herceptin‐modified HNPs (HER‐HNP) is smaller than that of other reported mesoporous silica nanoparticles, the extensive hollow cavity of HNPs (ca. 30 nm) allowed the loading of a large amount of CPT. CPT‐loaded HER‐HNP (HER‐HNP‐CPT) did not release CPT in phosphate‐buffered saline over a period of 24 h, however, HER‐HNP‐CPT in a hydrophobic solvent released its entire load of CPT. In addition, HER‐HNPs were efficiently internalized owing to their herceptin conjugation and optimized size. To evaluate in vitro antitumor efficacy, apoptosis/necrosis and viability of HER‐HNP‐CPT‐treated cells were investigated. When the cells were treated with HER‐HNP‐CPT for 30 min, a few apoptotic cells were observed. After 24 h, the viability of HER‐HNP‐CPT‐treated SK‐BR‐3 decreased to 60 %, which revealed highly efficient chemotherapy. However, CPT loaded into HNP or HER‐HNP had no significant effects on the viability of macrophages. Judging from these data, HER‐HNPs are very suitable for application in anticancer therapy. A HER‐HNP‐CPT drug delivery system offers a new direction for a hydrophobic anticancer drug carrier and can be expanded to practical applications with further studies.
ChemInform Abstract: Preparation and Structural Properties of Nonlinear Optical Borates K2(1‐x)Rb2xAl2B2O7, 0 < x < 0.75.
Authors: Atuchin V. V. , Bazarov B. G. , Gavrilova T. A. , Grossman V. G. , Molokeev M. S. , Bazarova Zh. G. 
Published: March 2012

AbstractThe title compounds (x = 0.25, 0.5, 0.75, 0.9) are prepared by solid state reaction of Al(NO3)3, H3BO3, K2CO3, and Rb2CO3 (various heat treatments between 400 and 850 °C for 7—48 h).
ChemInform Abstract: Synthesis, Structure, and Optical Properties of CsU2(PO4)3.
Authors: Oh George N. , Ringe Emilie , Van Duyne Richard P. , Ibers James A. 
Published: March 2012

AbstractThe title compound is synthesized from U, P, and Se in a CsCl flux (silica tube acting as oxygen source, 1273 K, 192 h; 20 wt.% yield).
ChemInform Abstract: A Bronze Matryoshka: The Discrete Intermetalloid Cluster [Sn@Cu12@Sn20]12‐ in the Ternary Phases A12Cu12Sn21 (A: Na, K).
Authors: Stegmaier Saskia , Faessler Thomas F. 
Published: March 2012

AbstractThe title compounds are synthesized using stoichiometric amounts of Cu—Sn alloys (obtained by arc‐melting Cu and Sn in the ratio of 12:21) and alkali metals (450 °C, 120 h).
ChemInform Abstract: A Supported Palladium Nanocatalyst for Copper Free Acyl Sonogashira Reactions: One‐Pot Multicomponent Synthesis of N‐Containing Heterocycles.
Authors: Santra Subhankar , Dhara Kalyan , Ranjan Priyadarshi , Bera Parthasarathi , Dash Jyotirmayee , Mandal Swadhin K. 
Published: March 2012

AbstractThe preparation of Pd‐nanoparticles embedded into the polymer matrix of poly(1,4‐phenylene sulfide) via the thermolysis of palladium acetate is described.
ChemInform Abstract: Tuning Chemoselectivity in Iron‐Catalyzed Sonogashira‐Type Reactions Using a Bisphosphine Ligand with Peripheral Steric Bulk: Selective Alkynylation of Nonactivated Alkyl Halides.
Authors: Hatakeyama Takuji , Okada Yoshihiro , Yoshimoto Yuya , Nakamura Masaharu 
Published: March 2012

AbstractIt is demonstrated that a Sonogashira coupling of alkyl halides with alkynyl Grignard reagents can be highly chemoselective in the presence of (I).
ChemInform Abstract: Pd(II)‐Catalyzed C—H Olefination of N‐(2‐Pyridyl)sulfonyl Anilines and Arylalkylamines.
Authors: Garcia‐Rubia Alfonso , Urones Beatriz , Gomez Arrayas Ramon , Carretero Juan C. 
Published: March 2012

AbstractA reliable method is developed, which is completely specific for the Pys protecting group.
ChemInform Abstract: Iron‐Catalyzed Oxidation of Tertiary Amines: Synthesis of β‐1,3‐Dicarbonyl Aldehydes by Three‐Component C—C Couplings.
Authors: Liu Weiping , Liu Jinhua , Ogawa Daisuke , Nishihara Yasushi , Guo Xingwei , Li Zhiping 
Published: March 2012

Abstractβ‐1,3‐Dicarbonyl aldehydes (III), (VI), and (VIII) are synthesized by Fe‐catalyzed oxidative reactions between 1,3‐dicarbonyl compounds (I) and (IV) and two molecules of tertiary amines (II), (V), and (VII) in the presence of tert‐butyl hydroperoxide.
ChemInform Abstract: A Practical One‐Pot Radical‐Ionic Sequence for the Preparation of Epoxides: Application to the Synthesis of Unnatural Polyhydroxylated Alkaloids.
Authors: Peralta‐Hernandez Eduardo , Cortezano‐Arellano Omar , Cordero Vargas Alejandro 
Published: March 2012

AbstractAllylic alcohols react with functionalized organic bromides and iodides via free‐radical atom‐transfer/base‐promoted cyclization to give epoxides directly.
ChemInform Abstract: Noncovalent Organocatalysis: A Powerful Tool for the Nucleophilic Epoxidation of α‐Ylideneoxindoles.
Authors: Palumbo Chiara , Mazzeo Giuseppe , Mazziotta Andrea , Gambacorta Augusto , Loreto M. Antonietta , Migliorini Antonella , Superchi Stefano , Tofani Daniela , Gasperi Tecla 
Published: March 2012

AbstractThe title reaction affords enantioenriched spiro compounds (II) and (III) with two contiguous stereocenters.
ChemInform Abstract: Synthesis of 3‐[2‐(1,3‐Butadienyl)]‐1H‐indoles en route to Murrapanine Analogue.
Authors: Chakraborty Amrita , Sinha Surajit 
Published: March 2012

AbstractStarting from o‐iodoaryl carbamates (I), a novel synthesis of the title butadienylindoles (VI) is developed.
ChemInform Abstract: Yb(OTf)3‐ or Au1‐Catalyzed Domino Intramolecular Hydroamination and Ring‐Opening of Sulfonamide‐Substituted 1,1‐Vinylidenecyclopropanediesters.
Authors: Wu Lei , Shi Min 
Published: March 2012

AbstractTwo kinds of five‐membered N,O‐heterocyclic compounds are efficiently synthesized from sulfonamide‐substituted vinylidenecyclopropanediesters, catalyzed by a hard Lewis acid Yb(OTf)3 and a soft Lewis acid Au(I) complex, respectively.
ChemInform Abstract: KAl(SO4)2·12H2O Catalyzed Efficient Synthesis of 3,4,6‐Trisubstituted 2‐Pyridone in Water.
Authors: Heravi Majid M. , Oskooie Hossein A. , Karimi Narges , Hamidi Hoda 
Published: March 2012

AbstractThe catalyst is successfully applied to the condensation of dicarbonyl compounds with amides.
ChemInform Abstract: Reactions of 5‐(Het)aryl‐1‐ethyl‐2(1H)‐pyrazinones with Terminal Arylacetylenes Promoted by Microwave Radiation.
Authors: Verbitskiy E. V. , Cheprakova E. M. , Slepuhin P. A. , Perova M. G. , Samorukova M. A. , Zabelina O. N. , Rusinov G. L. , Charushin V. N. 
Published: March 2012

AbstractThe title reaction leads regioselectively to a mixture of two isomeric 4‐aryl‐ and 5‐aryl‐substituted 2(1H)‐pyridones, in general.
ChemInform Abstract: Multicomponent Synthesis of 2,3‐Dihydrochromeno[4,3‐d]pyrazolo[3,4‐b]pyridine‐1,6‐diones: A Novel Heterocyclic Scaffold with Antibacterial Activity.
Authors: Frolova Liliya V. , Malik Indranil , Uglinskii Pavel Y. , Rogelj Snezna , Kornienko Alexander , Magedov Igor V. 
Published: March 2012

AbstractThree component reaction of salicyclic aldehydes, acetyl acetic esters, and heterocyclic amines allows the synthesis of the title compounds (IV) and related compounds.
ChemInform Abstract: Intramolecular Monomer‐on‐Monomer (MoM) Mitsunobu Cyclization for the Synthesis of Benzofused Thiadiazepine‐Dioxides.
Authors: Maity Pradip K. , Kainz Quirin M. , Faisal Saqib , Rolfe Alan , Samarakoon Thiwanka B. , Basha Fatima Z. , Reiser Oliver , Hanson Paul R. 
Published: March 2012

AbstractAfter the synthesis of the compounds (II) and (IV) the used norbornenyl‐tagged reagents can be reacted with the norbornene group in a ring‐opening metathesis polymerization and easily separated by filtration.
ChemInform Abstract: Stereoselective Conversion of Dihydropyran and Glycals to 1‐Azido‐2‐halo Derivatives Using NIS/NBS‐TMSN3.
Authors: Yousuf Syed Khalid , Hussain Altaf , Sharma Deepak Kumar , Wani Abdul Haleem , Singh Baldev , Mukherjee Debaraj , Taneja Subhash C. 
Published: March 2012

AbstractReaction of dihydropyran and glycals with NIS/NBS and trimethylsilyl azide as the halogen and azide sources constitutes a rapid, stereoselective, and high‐yielding method for the synthesis of 1,2‐trans‐2‐deoxy‐2‐haloglycosyl azides in the absence of any catalyst and obviating the need to employ excess reagents.