bluuebunny/crossref_metadata_2025_split huggingface dataset:
Former smokers with non‐small‐cell lung cancers: a comprehensive investigation of clinicopathologic characteristics, oncogenic drivers, and prognosis
Authors: Zheng Shanbo , Wang Rui , Zhang Yang , Pan Yunjian , Cheng Chao , Zheng Difan , Sun Yihua , Chen Haiquan 
Published: May 2016

AbstractThe aim of this present investigation was to evaluate the clinicopathologic characteristics, oncogenic drivers, and prognosis of former smokers with non‐small‐cell lung cancer (NSCLC), and to compare them with those of the current and never smokers. This investigation was a single‐institution retrospective study of 2289 NSCLC patients, who were classified as former, current, or never smokers. A collection was made of the clinicopathological characteristics, spectra of well‐identified driver genes and survival rates. The survival rates were compared using log‐rank test, and independent prognostic factors, identified using Cox regression analysis. Of 2289 NSCLC patients, 257 (11.2%) were former smokers; 868 (37.9%), current smokers; and 1164 (50.9%), never smokers. Compared with the current, the former were characterized by older age at diagnosis (64.3y vs. 59.9y; P < 0.001), earlier TNM stage (stage I, 47.9% vs. 39.5%; P = 0.017), fewer solid predominance in adenocarcinomas (16.2% vs. 29.5%; P = 0.005), and more EGFR mutation (33.2% vs. 20.7%; P < 0.001) but less KRAS mutation (6.7% vs. 11.9%, P = 0.041). No statistically significant survival differences were observed between the former and current. However, the light former smokers presented favorable overall survival when compared with the light current and heavy former or current (the light former vs. the heavy former, P = 0.028; the light former vs. the light current, P = 0.048; and the light former vs. the heavy current, P = 0.048). Our findings suggest that the former smokers with NSCLCs can have distinctive clinicopathologic characteristics, oncogenic drivers, and prognosis, and they, especially the light former, can benefit from smoking cessation.
Measured cardiorespiratory fitness and self‐reported physical activity: associations with cancer risk and death in a long‐term prospective cohort study
Authors: Robsahm Trude E. , Falk Ragnhild S. , Heir Trond , Sandvik Leiv , Vos Linda , Erikssen Jan E. , Tretli Steinar 
Published: May 2016

AbstractPhysical activity is inversely associated with risk of some cancers. The relation with cancer‐specific death remains uncertain. Mainly, studies on relationships between physical activity and cancer are based on self‐reported physical activity (SPA). Hereby, we examined whether measured cardiorespiratory fitness (CRF) is associated with cancer risk, mortality, and case fatality. We also describe relationships between SPA and these outcomes, and between CRF and SPA. A cohort of 1997 healthy Norwegian men, aged 40–59 years at inclusion in 1972–75, was followed throughout 2012. At baseline, CRF was objectively measured. SPA (leisure time and occupational) was obtained through a questionnaire. Relationships between CRF or SPA, and the outcomes were estimated using Cox regression, adjusted for age, body mass index (BMI), and smoking. Pearson correlation coefficients evaluated agreements between CRF and SPA. During follow‐up, 758 men were diagnosed with cancer and 433 cancer deaths occurred. Analyses revealed lower cancer risk (Hazard ratio [HR] 0.85, 95% confidence intervals [CI]: 0.68–1.00), mortality (HR 0.68, 95% CI: 0.53–0.88), and case fatality (HR 0.74, 95% CI: 0.57–0.96), in men with high CRF compared to low CRF. Light leisure time SPA was associated with lower cancer risk (HR 0.70, 95% CI: 0.56–0.86) and mortality (HR 0.64 95% CI: 0.49–0.83), whereas strenuous occupational SPA was associated with higher risks (HR 1.42, 95% CI: 1.13–1.78 and HR 1.45, 95% CI: 1.09–1.93). Correlations between CRF and SPA were 0.351 (P < 0.001) and −0.106 (P < 0.001) for leisure time and occupational SPA, respectively. A high midlife CRF may be beneficial for cancer risk, cancer mortality, and case fatality.
Stratifying prostate cancer patients by relative lymph node involvement: population‐ and modeling‐based study
Authors: Poleszczuk Jan T. , Johnstone Peter A. , Enderling Heiko 
Published: May 2016

AbstractIt is estimated that about 10% of new prostate cancer (PCa) cases are lymph node‐positive (LN+). We have previously discussed the role of the inflection point (IP) of an inverse Gompertzian survival curve as a surrogate for disease incurability. In this study, we aimed to stratify curability of different patient cohorts with pathologically positive lymph nodes through modeling survival curves by different percentages of LN involvement (%LN+) postoperatively and calculating associated IPs. From the Surveillance, Epidemiology, and End Results (SEER) database, we selected LN+ PCa patients undergoing radical prostatectomy. Modeling of relative survival curves using inverse Gompertzian kinetics for increasing value of maximal %LN+ involvement allowed stratification of cohort into groups with <10%, 10–40%, and greater or equal to 40% of LN+ out of all LNs sampled. Data were retrieved for 5903 patients. For the entire cohort, relative survival was 96%, 87%, and 76% at 5, 10, and 15 years, respectively. For %LN +, <10% the IP was about 27 years postoperatively. Patients with 10–40% LN+ had an IP at about 10 years; for those with more than 40% LN+, the IP was 7 years. A 10‐year relative survival decreases from 97% for <10% LN+ to 71% for more than 40% LN+. While better therapies for LN + PCa are badly needed, this patient cadre is not homogenous and should be stratified by %LN+ in future clinical trials.
Torsion of left main bronchus during general anesthesia for posterior instrumented spinal fusion
Authors: Arumainathan Renuka , Morris Stephen A. C. , George Marina 
Published: May 2016

Key Clinical MessagePulmonary function tests such as flow‐volume loops and reconstructive radiological imaging may aid the detection of large airway obstruction prior to corrective surgery for severe scoliosis. Intraoperative use of halo‐gravity traction may help to reduce the severity of the scoliosis, and thus the extrinsic compression or torsion of the airways.
Charged versus Neutral Hydrogen‐Bonded Complexes: Is There a Difference in the Nature of the Hydrogen Bonds?
Authors: Alkorta Ibon , Mata Ignasi , Molins Elies , Espinosa Enrique 
Published: May 2016

AbstractA theoretical study on some carboxylic acid dimers formed by positively or negatively charged molecules has been carried out by using DFT methods. The resulting dimers possess either a charge of +2 or −2. In addition, the corresponding neutral complexes have also been considered. The electron density distribution described by the atoms in molecules and the natural bond orbital methods, as well as the electric field maps of the systems, have been analyzed and compared without finding significant differences between the neutral and ionic complexes. The interaction energy along the dissociation path of the charged dimers shows both a local minimum and a local maximum, defining a stability region between them. When this energetic profile is recalculated by removing the repulsion between the charged groups, it resembles to those of the neutral molecules. Hence, the characteristics of the charged dimers are similar to those of the neutral ones: the addition of a repulsion term for the charged groups permits to retrieve the energetic profiles dependence with the distance in the charged system. The interacting quantum atom (IQA) method has been used to calculate the interaction energy terms, including the classic Coulombic term between the whole molecules and the corresponding of the carboxylic acid groups. The IQA results show repulsive electrostatic interactions when the whole molecules are considered in the ionic complexes, but attractive ones between the carboxylic groups in both neutral and ionic complexes.
An Easily Accessible Self‐Healing Transparent Film Based on a 2D Supramolecular Network of Hydrogen‐Bonding Interactions between Polymeric Chains
Authors: Roy Nabarun , Tomović Željko , Buhler Eric , Lehn Jean‐Marie 
Published: May 2016

AbstractSelf‐healing polymers hold great promise for the future, enhancing in particular the longevity of polymeric materials. We describe a self‐healing covalent polymer, presenting an extensive array of hydrogen‐bonding sites based on the combination of urea, urethane, and bis‐acyl‐hydrazine units. Solvent‐cast thin‐films prepared by polycondensation of a commercially available dihydrazide and a diisocyanate prepolymer exhibited excellent room temperature autonomous healing with almost full recovery of mechanical properties when two parts of a cut film were overlapped and gently pressed together. This autonomous healing upon damage may be attributed to the supramolecular dynamics of multiple lateral inter‐chain hydrogen‐bonding interactions between the polymer chains. The solid‐state structure of a model compound incorporating the same structural backbone corroborates the existence of an extensive two‐dimensional supramolecular hydrogen‐bonding network.
ChemInform Abstract: Sc3Ni2Si3 with Hf3Ni2Si3‐Type Structure, an Intergrowth of CrB‐, ThCr2Si2‐ and W‐Type Slabs.
Authors: ZHAO J. T. , PARTHE E. 
Published: May 2016

AbstractSc3Ni2Si3, one of the 15 ternary compounds previously observed in the Sc‐Ni‐Si phase diagram, is prepared by arc melting of the elements under argon atmosphere.
ChemInform Abstract: Glass Strengthening by Polymer‐Derived Ceramic Coatings.
Authors: BLUM Y. D. , PLATZ R. M. , CRAWFORD E. J. 
Published: May 2016

AbstractIt is demonstrated that polysilazane‐derived ceramic coatings of 0.1‐4 μm thickness increase the rupture strength of glass rods from 179 MPa to up to 414 MPa.
ChemInform Abstract: Stereoselective Synthesis of Conjugated 2,4‐Alkadienoates via the Palladium‐Catalyzed Cross‐Coupling of 1‐Alkenylboronates with 3‐Bromo‐2‐alkenoates.
Authors: YANAGI T. , OH‐E T. , MIYAURA N. , SUZUKI A. 
Published: May 2016

Abstract(2E,4E)‐, (2Z,4E)‐ and (2E,4Z)‐2,4‐Alkadienoates can be synthesized in high yields by cross‐coupling of alkenes with alkenyl boron compounds in the presence of a Pd‐catalyst, Na2CO3 or K2CO3 and MeOH or EtOH.
ChemInform Abstract: Intramolecular Diels‐Alder Reaction of Thioaldehydes.
Authors: SEGI M. , TAKAHASHI M. , NAKAJIMA T. , SUGA S. , SONODA N. 
Published: May 2016

AbstractThe ω‐bromo acetals (III) and the 2,4‐dienyl acetates (XI), both prepared as shown in the reaction scheme, are coupled in the presence of dilithium tetrachlorocuprate to yield the long‐chain dienals (XII) after acidic deacetalization.
ChemInform Abstract: Diastereoselectivity in the Cyclization of 1‐(2‐(Benzyloxymethyl)‐3‐butenyl)‐5‐ethoxy‐2‐pyrrolidinones.
Authors: ZONJEE J. N. , DE KONING H. , SPECKAMP W. N. 
Published: May 2016

AbstractUpon treatment with formic acid, the pyrrolidones (VI) ((VIb)‐(VId) are obtained from (IVb)‐(IVd) together with their 5‐ethoxy isomers) cyclize to give indolizinones.
ChemInform Abstract: (3.3) Sigmatropy Within 1‐Vinyl‐2‐alkenyl‐7,7‐dimethyl‐exo‐norbornan‐2‐ols. The First Atropselective Oxyanionic Cope Rearrangement.
Authors: PAQUETTE L. A. , PEGG N. A. , TOOPS D. , MAYNARD G. D. , ROGERS R. D. 
Published: May 2016

AbstractThe anionic oxy‐Cope rearrangement of the readily available title compounds (I) is shown to occur rapidly at room temp. exclusively via the respective endo‐chair transition states.
ChemInform Abstract: Asymmetric Induction in the Wittig‐Still Rearrangement of Ethers Containing an Allylic Stereocenter ‐ Diastereocontrol by Allylic Oxygen.
Authors: PRIEPKE H. , BRUECKNER R. + 
Published: May 2016

AbstractA variety of stannylated allyl ethers such as (I) are prepared and subjected to the Still variant of the Wittig rearrangement.
ChemInform Abstract: Hydroxylation of Alkanes by Hydrogen Peroxide Catalyzed by Iron Complexes in the Presence of Pyridine or 2,2′‐Bipyridine.
Authors: NAM W. , VALENTINE J. S. 
Published: May 2016

AbstractThe cycloalkanes (I) are oxidized by hydrogen peroxide in the presence of an iron complex, zinc powder, acetic acid, and bipyridine to give the alcohols (II) and the ketones (III).
ChemInform Abstract: A Novel Synthesis of Mono‐ and Disubstituted (1‐Cycloalkenyl)acetic Acid Derivatives via Ionization/Elimination of β‐Lactones.
Authors: BLACK T. H. , EISENBEIS S. 
Published: May 2016

AbstractCoupling of the cycloalkanones (I) with the dilithium salts of the carboxylic acids (II) gives the β‐hydroxycarboxylic acids (III).
ChemInform Abstract: Experiments Towards the Generation of 1,5‐ and 2,3‐Didehydroquadricyclanes.
Authors: HEYWANG U. , SZEIMIES G. 
Published: May 2016

AbstractThe title species (I), (II) cannot be generated by the following experiments: The bromination products (IVa + b) from the readily accessible quadricyclane derivative (III) are treated with the base (V) generating the dehydro species (VI) rather than the required (IX) corresponding to (I); main components of the final product mixture (55%) are the compounds (VII) and (VIII).
ChemInform Abstract: Convenient Synthesis of N‐Aryl‐2‐hydroxysuccinimides and Characterization of Their Hydrolysis Products.
Authors: SHIH H. , RANKIN G. O. 
Published: May 2016

AbstractThe chloralide (I), prepared from chloral hydrate and D,L‐malic acid, is converted to the title compounds (III) by treatment of the acid chloride with the anilines (II).
ChemInform Abstract: Enantioselective Synthesis of (7aS)‐(‐)‐2,3,7,7a‐Tetrahydro‐7a‐phenylthio‐1H‐indene‐1,5(6H)‐dione and (8aS)‐(+)‐3,4,8,8a‐Tetrahydro‐8a‐phenylthio‐1,6(2H,7H)‐naphthalenedione.
Authors: KWIATKOWSKI S. , SYED A. , BROCK C. P. , WATT D. S. 
Published: May 2016

AbstractThe cyclic 1,3‐diketones (I) are subjected to sulfenylation and Michael addition to yield the prochiral triketones (V) which are cyclized in the presence of (R)‐proline, forming the bicyclic hydroxy dione (VI).
ChemInform Abstract: Asymmetric 1,2‐ and 1,3‐Inductions and Solvent Dependence Found in Chelate‐Controlled Additions of Grignard Reagents and Cuprates to Chiral β‐Formyl Esters. Stereoselective Synthesis of γ‐Lactones.
Authors: JANOWITZ A. , KUNZ T. , HANDKE G. , REISSIG H.‐U. 
Published: May 2016

AbstractThe β‐formylcarboxylates (I) and (IX) are cyclized upon treatment with lithium dibutylcuprate (II), the Grignard compounds (IV), (V), or allyltrimethylsilane (VIII) to yield mainly the trans‐isomers of the γ‐lactones (III), (VII), or (X).
ChemInform Abstract: Synthesis of 2‐Aryl‐3‐cyanophthalimidines and Related Analogs.
Authors: BAUM J. S. , STAVESKI M. M. 
Published: May 2016

AbstractThe 2‐methoxycarbonylbenzylidenanilines (III), prepared from the aldehyde (I) and the aromatic amines (II), are treated with potassium cyanide (IV) in an acidic solution to generate the corresponding HCN adducts (V) which are directly cyclized in most cases, forming the cyanoisoindolinones (VI).
ChemInform Abstract: Amberlyst‐15 as a Convenient Catalyst for Chemoselective Thioacetalization.
Authors: PERNI R. B. 
Published: May 2016

AbstractThe aldehydes (I) are treated with ethane‐1,2‐dithiol (II) in the presence of the sulfonic acid ion‐exchange resin Amberlyst‐15 at room temperature to form the thioacetals (III).
ChemInform Abstract: Amino Acids as Chiral Building Blocks: Dihydrothiazole Derivatives (δ4‐Thiazoline) Made from Cysteine.
Authors: SEEBACH D. , JEANGUENAT A. , SCHMIDT J. , MAETZKE T. 
Published: May 2016

AbstractPivalaldehyde (I) reacts with L‐cysteine hydrochloride (II) to give the 1,3‐thiazolidinium chloride (III) which is N‐acylated with benzyl chloroformate (IV) to give (V).
ChemInform Abstract: Heterocycles. Part 24. Synthesis of Optically Pure 2,3‐trans‐5,7,3′,4′,5′‐Pentahydroxyflavan‐3,4‐diols and Comparison with Naturally Occurring Leucodelphinidins.
Authors: ONDA M. , LI S. , LI X. , HARIGAYA Y. , TAKAHASHI H. , KAWASE H. , KAGAWA H. 
Published: May 2016

AbstractThe acetophenone (I) reacts with the aldehyde (II) to give the chalcone (III).
ChemInform Abstract: Annulation of Pyridine to Indole by a Tandem Aza‐Wittig/Electrocyclization Strategy: Synthesis of Pyrido(2,3‐b)indoles.
Authors: MOLINA P. , FRESNEDA P. M. 
Published: May 2016

AbstractCoupling of the (3‐formylindolylimino)phosphorane (I) with nitromethane (II) gives the nitroethenyl derivative (III) which is cyclized with the isocyanates (IV), forming the pyridoindoles (V).
ChemInform Abstract: Pyridazine Compounds. Part 25. Reinvestigation of Acylation of Pyridazinylhydrazones.
Authors: SZILAGYI G. , MATYUS P. , SOHAR P. 
Published: May 2016

AbstractDifferent pathways are discovered for the title reaction which depends on the 6‐substituent and reaction conditions (see (III) ← (I) + (II) → (VIII)), but is also influenced by the hydrazone moiety (see (IX) + (X) → (XI)).
ChemInform Abstract: Stereoselective Cycloadditions of Chiral Acylnitroso Compounds.
Authors: MILLER A. , PATERSON T. MCC. , PROCTER G. 
Published: May 2016

AbstractOxidation of the hydroxamic acids (I) and (V) in the presence of the cyclic 1,3‐dienes (II) and (VIII) results in cycloaddition reaction, producing predominantly the bicyclic 1,2‐oxazines (III), (VI), and (IX) respectively.
ChemInform Abstract: The Unusual Course of the Reactions of Phosphorus Pentachloride with 1‐Phosphorylated Alcohols and Acetals.
Authors: GAZIZOV M. B. , KHAIRULLIN R. A. 
Published: May 2016

AbstractThe phosphonates (I) react with phosphorus pentachloride (II) in benzene to produce the phosphorodichloridates (III).
ChemInform Abstract: Iron‐Iridium Mixed‐Metal Carbonyl Clusters. Part 2. Synthesis and Chemical Behavior of the Tetranuclear Complexes (FeIr3(CO)12)‐, (Fe2Ir2(CO)12)2‐, (Fe2Ir2H(CO)12)‐, and (Fe3Ir(CO)13)‐. Solid‐State Structures of (N(PPh3)2)(FeIr3(CO)12), (NEt4)2(Fe2Ir2(CO)12), and (PPh4)(Fe2Ir2(CO)12(μ3‐Au(PPh3))).
Authors: DELLA PERGOLA R. , GARLASCHELLI L. , DEMARTIN F. , MANASSERO M. , MASCIOCCHI N. , SANSONI M. 
Published: May 2016

Abstract(IIIa), obtained by degradation of (I) (or alternatively by reduction of an equimolar mixture of Fe(CO)5 and Ir4(CO)12 in methanolic NaOH under CO), crystallizes as N(PPh3)2 salt in P21/c with Z=4.
ChemInform Abstract: Synthesis of Novel Diplatinum Complexes Containing the (Diphenylphosphino)cyclopentadienyl Ligand.
Authors: ANDERSON G. K. , LIN M. , CHIANG M. Y. 
Published: May 2016

AbstractThe novel organoplatinum dimers (III) are characterized by their 1H, 13C, 31P and 195Pt NMR spectra and X‐ray of (IIIb) (space group P1, Z=2).
ChemInform Abstract: The Pictet‐Spengler Reaction of Nb‐Hydroxytryptamines and Cysteinals. Part 1. Isolation of Tetracyclic Intermediates and Formation of Optically Active Nb‐Hydroxy‐tetrahydro‐β‐carbolines.
Authors: LIU J. , NAKAGAWA M. , HINO T. 
Published: May 2016

AbstractIn connection with the total synthesis of the eudistomins, Nb‐hydroxy‐tetrahydro‐β‐carbolines are required.
ChemInform Abstract: An Improved Method for the Synthesis of Highly Substituted Alkyl Phosphates Including Nucleoside 5′‐Phosphates.
Authors: COE D. , FLITSCH S. L. , HILPERT H. , LIEBSTER M. , ROBERTS S. M. , TURNER N. J. 
Published: May 2016

AbstractThe β‐hydroxy acetals (I) and the nucleosides (V) are coupled with the di‐tert‐butyl phosphoramidite (II) and subsequently oxidized with MCPBA to produce the phosphates (III) and (VI).
ChemInform Abstract: Regio‐ and Stereoselective Construction of Anthracyclinones: Total Synthesis of (‐)‐γ‐Rhodomycinone.
Authors: FUJIOKA H. , YAMAMOTO H. , KONDO H. , ANNOURA H. , KITA Y. 
Published: May 2016

AbstractThe acetoxymethoxyhomophthalic anhydride (I) and the tetrahydronaphthoquinone (II), which is prepared from a dimethoxytetralone acetal, undergo cyclization to form the tetracyclic quinone (III).
ChemInform Abstract: An ESR Study of Surface Properties of MgO and Metal‐Ion‐Modified MgO
Authors: ZHANG G. , TANAKA T. , YAMAGUCHI T. , HATTORI H. , TANABE K. 
Published: May 2016

Abstractperformed using NO as a probe molecule shows that the addition of guest ions such as Na+, Al3+, and Zr4+ causes a great increase of the number of NO22‐ radicals formed at strongly basic sites.
ChemInform Abstract: Uranium(IV) Hydrolysis Constants and Solubility Product of UO2·xH2O(am).
Authors: RAI D. , FELMY A. R. , RYAN J. L. 
Published: May 2016

AbstractThe solubility of amorphous UO2·xH2O (I) is studied in dilute solutions in the pH range 2‐12 using Fe powder and Eu2+ to minimize the possibility of oxidation of U(IV) to U(VI) during the experiments.
ChemInform Abstract: A Temperature‐Programmed Sulfiding Study of NiO‐WO3/Al2O3 Catalysts.
Authors: SCHEFFER B. , MANGNUS P. J. , MOULIJN J. A. 
Published: May 2016

AbstractThe sulfided form of NiO‐WO3/Al2O3 catalysts is applied for hydrotreating and hydrocracking reactions.
ChemInform Abstract: Tandem 1,5‐Hydrogen Transfer and Decarbonylation in the Flash Vacuum Pyrolysis of 5‐Vinyl‐3‐methyl‐1,2‐dioxane.
Authors: BLOODWORTH A. J. , CURTIS R. J. 
Published: May 2016

AbstractTreatment of the unsaturated hydroperoxide (I) with mercury(II) nitrate results in the formation of cycloperoxymercurials which are demetalated by reduction with sodium borohydride in the presence of a base to give the 1,2‐dioxanes (II).
ChemInform Abstract: Novel Cyclooligomerization of Nickel Carbenoids: A Simple and Efficient Synthesis of Radialenes.
Authors: IYODA M. , MIZUSUNA A. , KURATA H. , ODA M. 
Published: May 2016

AbstractCyclooligomerization of the 1,1‐dihaloalkenes (I), (VII), and (X) is achieved by treatment with activated nickel, producing the radialenes (IV) ‐ (VI), (VIII) and (IX), or (XII).
ChemInform Abstract: The Mercury(II)‐Catalyzed, One‐Pot Oxidation of Terminal Alkynes by Sodium Perborate in Acetic Acid.
Authors: REED K. L. , GUPTON J. T. , MCFARLANE K. L. 
Published: May 2016

AbstractThe reaction mentioned in the title converts the alkynes (I) into the α‐acetoxy ketones (III).
ChemInform Abstract: Selective Reduction of Aryl Halides and α,β‐Unsaturated Esters with Sodium Borohydride‐Cuprous Chloride in Methanol and Its Application to Deuterium Labeling.
Authors: NARISADA M. , HORIBE I. , WATANABE F. , TAKEDA K. 
Published: May 2016

AbstractThe authors developed a reducing system consisting of NaBH4 and Cu2Cl2 in methanol.
ChemInform Abstract: Asymmetric Diels‐Alder Reaction Using (S)‐Pyroglutamic Acid Derivatives as Chiral Dienophiles.
Authors: IKOTA N. 
Published: May 2016

AbstractCondensation of the sodium salt of (S)‐5‐(methoxymethoxymethyl)‐2‐pyrrolidinone (I) with acryloyl chloride (IIa) and E‐crotonyl chloride (IIb) produces the corresponding N‐acyl derivatives (III).
ChemInform Abstract: Synthesis and Some Properties of 2‐Hydroxy‐6‐methyl‐2‐phenyl‐1,1,1‐trifluoro‐5‐hepten‐4‐one.
Authors: SOSNOVSKIKH V. YA. , OVSYANNIKOV I. S. 
Published: May 2016

AbstractAldol addition of mesityl oxide (I) with trifluoroacetophenone (II) produces the title compound (IIIa) which is cyclized in boiling trifluoroacetic acid to give the tetrahydropyrone (IV).
ChemInform Abstract: One‐Pot Synthesis of Acetylenic Sulfones from Chloro(phenylsulfonyl)methanephosphonate.
Authors: LEE J. W. , KIM T. H. , OH D. Y. 
Published: May 2016

AbstractDiethyl chloro(phenylsulfonyl)methylphosphonate (I) is employed in the Wittig‐Horner olefination of the benzaldehydes (II), yielding the intermediate chlorostyryl phenyl sulfones (III).
ChemInform Abstract: A Novel Formation and Photochemical Reaction of 3,3‐Di‐tert‐butyl‐3′,3′‐diphenyl(1,2)dithiolo(5,4‐d)(1,2)dithiole.
Authors: TOKITOH N. , IMAI S. , GOTO M. , ANDO W. 
Published: May 2016

AbstractThe butatriene (I) is heated with sulfur (II) under various conditions to form the bicyclic tetrasulfide (III).
ChemInform Abstract: Photochemical (2 + 2)‐ and (4 + 2)Cycloadditions of N‐Methylphthalimide to Allyltrimethylsilane.
Authors: KUBO Y. , TANIGUCHI E. , ARAKI T. 
Published: May 2016

AbstractPhotolysis of N‐methylphthalimide (I) with allyltrimethylsilane (II) at a wavelength of about 310 nm yields the (4 + 2)cycloadducts (III) and (IV), together with the coupling product (V).