bluuebunny/crossref_metadata_2025_split huggingface dataset:
Structure of Perchlorato(2,5,8,11‐Tetraazadodecane)Copper (II) Perchlorate Monohydrate
Authors: Wu Fang‐Jy , Wang Sue‐Lein , Liou Yuh‐Liang , Chung Chung‐Sun 
Published: June 2015

Abstract[Cu(C8H22N4)]·(ClO4)2.H2O, Mr= 454.80, orthorhombic C2221, a = 15.481(5), b = 7.404(1), c = 14.827(3)Å, V = 1699.5(8)Å3, Z = 4, Dx = 1.78 g/cm3, λ(MoKα) = 0.71073Å, μ = 16.5 cm−1. F(000) = 940, T = 22°C, R = 6.86%, Rw = 7.66% for 820 observed reflections (I > 2.5σ (I)). The coordination number for the copper(II) ion is five, and the coordination geometry about copper(II) ion is a buckled square pyramid with the tetraamine equatorial and a perchlorate ion axial. The tetraamine is coordinated in a square‐plannar manner with slight tetrahedral distortions. The four Cu‐N distances span a very narrow range, 1.990(10) −1.994(14)Å.
Convolution of Velocity Distributions in a Pulsed Molecular Beam
Authors: Chen Kuo‐Mei , Chien Tzeng‐Shyang , Pei Cheng‐Chih 
Published: June 2015

AbstractThe velocity distributions P(v) of pulsed molecular beams are conventionally measured via TOF techniques. To account for the finite pulse widths of beam valves, a convoluted TOF distribution function P(t) is derived. TOF data on Ar pulsed beams are analyzed accordingly.
Some Reactions of 2‐Amino‐3‐Cyano‐Substituted Pyrroles
Authors: Bayomi Said M. , Al‐Khamees Hamad A. , Ismail Abdel‐Kader M. , Eissa Hassan M. , El‐Kerdawy M. 
Published: June 2015

AbstractReactivity of 2‐amino‐3‐cyano‐4.5‐disubstituted pyrroles was studied and data for structural assignment are reported.
Application of Phosphorus‐31 Nuclear Magnetic Resonance Spectrosocopy for the Study of Human Diabetic Cataractogenesis
Authors: Hay Andy , Aguayo James , Stark Walter , Chen Chung‐Ho , Camli Ugur , Kan Lou‐Sing 
Published: June 2015

AbstractIntact human Senses incubated at 5.5 mM (normal) and 35.5 mM glucose were examined by phosphorus‐31 nuclear magnetic resonance (31P NMR) spectroscopy. Lense in 35.5 mM glucose showed an altered metabolic steady‐state characterized by a lowered adenosine triphosphate/inorganic orthophosphate ratio.31P NMR spectroscopy can be used to measure metabolic changes in the lens. This model offers an important means to study dynamic metabolism in the human lens in the setting of diabetic cataractogenesis.
An Efficient Synthesis of 8‐Amino‐9‐Benzylguanine
Authors: Chern Ji‐Wang , Kuo Jih‐An , Lu Guan‐Yu 
Published: June 2015

AbstractThe reaction of 2,5‐diamino‐4‐benzylamino‐pyrimidin‐6(III)‐one (6) with benzoyl isothiocyanate furnished 2‐amino‐4‐benzylamino‐5‐[1‐(3‐benzoylthioureido)]‐pyrimidin‐6(1H)‐one (7) in good yield. The title compound I was synthesized from compound 7 via a cyclodesulfurative reaction with DCC in DMF at 80°C directly to form 8‐benzoylamino‐9‐benzylguanine (9) which was subsequently treated with 1 N sodium hydroxide.
Diffusion Coefficients of Atomic Halogen
Authors: Hwang Ming‐Dar , Su Tzu‐Min 
Published: June 2015

AbstractDiffusion coefficients of atomic halogen with noble gases were calculated from the potential curves reported in the literature from the crossed molecular‐beam scattering experiments. The deviations of the diffusion constants between the atomic halogen‐noble gas systems and the neighboring noble gas‐noble gas systems were obtained over the temperature range of 200 K to 1100 K. The parameters of Lennard‐Jones 6–12 potentials were also obtained for the chlorine and iodine atoms. The internal consistency of the diffusion constants calculated from the 6–12 potential parameters among the halogen atom‐noble gas systems is very good. However, the agreement was found to be only fair for the inert molecular systems with the chlorine atoms. The extent of the similarity of the diffusion constants between the atomic halogen‐noble gas and the noble gas‐noble gas systems is discussed.
Determination of Dialkyltin Compounds in Poly(Vinyl Chloride) by High‐Performance Liquid Chromatography
Authors: Row In‐Lin , Liu Yueh‐Lin , Whang Chen‐Wen 
Published: June 2015

AbstractA high‐performance liquid chromatography (HPLC) method has been developed for the analysis of dialkyltin compounds in polyvinyl chloride (PVC) materials. The PVC sample was first dissolved in tetrahydrofuran. Concentrated hydrochloric acid was then added to convert the dissolved dialkyltin stabilizers into the chloride forms, followed by extraction with hexane. The extracted dialkyltin chlorides were preconcentrated and were finally separated by HPLC. Separation was performed using a C18 column and an eluent of aqueous methanol containing 8‐hydroxyquinoline (oxine) as the completing agent. Photometric detection of the dialkyltin‐oxine complexes was carried out at 380 mm. Under optimum experimental conditions, the detection limits for dimethyltin, dibutyltin and dioctyltin are 1.7 ng, 2.1 ng and 2.9 ng (all as tin), respectively. Residual dialkyltin stabilizers in several commercially available PVC products were successfully analyzed via this method.
Mass Spectra of N‐Arylglycines and Substituted Aniline‐N,N‐Diacetic Acids
Authors: Lin Shaw‐Tao , Shiue Gong‐Yih 
Published: June 2015

AbstractThe electron impact mass spectra of eleven N‐arylglycines and seven substituted aniline‐N,N‐diacetic acids were obtained under 70 eV and 14 eV ionization energies. The fragmentation patterns are similar to those of α‐amino acids except for the degree of cleavage. The dehydration process of the diacetic acids may be considered as the characterestic process for this group of compounds.
Stationary Phases 21: A New Polar Substituted Triazine Stationary Phase for HPLC
Authors: Shieh Kuan‐Jiunn , Huang Chen‐Chia , Den Tschau‐Gan 
Published: June 2015

AbstractA method for preparing a new polar substituted triazine stationary phase is described. The structure of the triazine phase on silica was characterized by elemental analysis, and by FTIR, solid state FT‐13C NMR, and 29Si NMR spectral analysis. The chromatographic properties of this packing material have been evaluated by using a number of different solutes, and the properties compared with those of a commercial stationary phase RP‐18. It is found that this triazine phase has weak π‐donor ligands on the silica surface.
Applicability of the Levich Equation for a Two‐Phase Solution in the Rotating Disk Electrode System
Authors: Lee Jeou‐Long , Shih Yen‐Shiang 
Published: June 2015

AbstractThe mass‐transter characteristics of a two‐phase system formed by mixing a fixed quantity (20 v/v%) of organic solvent with an aqueous ferricyanide electrolyte solution in an RDE system were studied. The Levich eqution, I1 = 0.62 nFACbD2/3v−1/6ω1/2, was found to be applicable to the two‐phase system with only a minor modification in the angular velocity (ω) at Reynolds numbers between 3–5 × 104. The experimental results indicate that the interfacial tension is the most important variable for the two‐phase system. One group of organic solvents with smaller interfacial tension, such as benzene or toluene, needs a modification of the Levich equation by replacing the observed angular velocity (ωo) with the true angular velocity (ωt) which was observed to be 1.1 times the observed angular velocity. For the other group with larger interfacial tension, such as n‐hexane or cyclohexane, there is no need to modify the observed angular velocity. In other words, the Levich equation may be expressed as I1 = 0.65 nFACbD2/3v−1/6ω1/2 for two‐phase solution if the interfacial tension is smaller than 37.0 dyne/cm.
Pyridazine Derivatives and Related Compounds, Part 1. Some Reactions with 4‐Cyano‐5,6‐Diphenyl‐2,3‐Dihydropyridazine‐3‐One
Authors: Deeb A. , Said S.A. , Hamed M.M. , Yasin F. 
Published: June 2015

Abstract4‐Cyano‐5,6‐diphenyl‐2,3‐dihydropyridazine‐3‐onc 1 reacts with phosphorous oxychloride to give 70% of the corresponding 3‐chloro derivative 2. Treating 2 with anthranilic acid in butanol, 4‐cyano‐2,3‐diphenyl‐10H‐pyridazino[6,1‐b]quinoxaline‐10‐one, 3 was obtained. Compound 1 reacts with phosphorous pentasulphide to give 3‐mercapto derivative 4, which was converted by acrylonitrile to S‐(2‐cyanoethyl)pyridazine derivative 5. Compound 4 reacts with ethyl bromoacetate and with phenacyl bromide gave the corresponding thieno[2,3‐c] pyridazine derivatives 8, 9, Alkylation of 1 with ethyl chloroacetate afforded 3‐0‐carbethoxymethyl derivative 10. Compound 10 reacts with amines (aniline, hydrazine) to give the corresponding amide and acid hydrazide 13, 12 respectively. Hydrolysis of 10 with sodium hydroxide gave the corresponding acid derivative 11. Treating 1 with methyl iodide, 3‐0‐methyl derivative 14 was obtained, which was converted by ammonium acetate/acetic acid to 3‐amino‐4‐cyano‐5,6‐diphenyl pyridazine 15. Compound 1 reacts with methyl magnesium iodide gave 4‐acetyl derivative 16, which was reacted with hydrazine, phenyl hydrazine and with hydroxylamine to give the substituted I H pyrazolo [3,4‐c] pyridazine 17 a,b and isoxazolo [5,4‐c] pyridazine 18 derivatives respectively.
A Rapid Sample Preparation Method of Adriamycin from Plasma for HPLC Analysis
Authors: Lin Shan‐Yang , Wu Wen‐Hsiu 
Published: June 2015

AbstractA rapid and comprehensive sample preparation method used to extract adriamycin from plasma has been investigated. The samples were passed through an Adsorbex extraction column with an elution solvent. The eluate was directly analyzed by reversed‐phase high performance liguid chromatography (HPLC) with fluorescence detector. This solid/liquid extraction method is simpler than the conventional liquid/liquid extraction method. Different elution solvents were used to extract the adriamycin from samples with and without serum. The mobile phase was found to be the optimal elution solvent: 5 mM orthophosphoric acid 62.5% in methanol; acetonitrile; isopropanol = 15:15:7.5, pH 3.2. This method has the merits of better recovery (98%), higher reproducibility, and reguires shorter time and consumes less solvent.
Polarography of Uranyl Complex with Chromotropic Acid
Authors: Chen Shou Nan , Gi Hung Jang , Hung S Song 
Published: June 2015

AbstractThe polarography characteristic of uranyl ion in chromotropic acid solution was investigated systematically over the pH range 2.0 to 10.0 with ligand concentrations varying from 0.010 M to 0.200 M. At pH 5.5, the one‐electron reversible reduction waves were obtained. The temperature coefficient of the half‐wave potential was obtained to be −0.32 mV per degree and the mean value of id/h1/2 is 0.340 ± 0.003. The electrode reaction is UO2(HA)24− + c = UO2(HA)2− + HA3−Where pH 5.5, an irreversible and diffusion‐controlled wave was obtained. The diffusion coefficients and kinetic parameters of complex species were determined by deducing instantaneous equations.
Physico‐Chemical Characteristics and Formation Constants of Mono‐ and Binuclear Co(II), Ni(II) and Cu(II) Chelates with Phthaleincomplexone
Authors: Abd‐Elmottaleb Mohamed , Abu‐Elwafa Samy M. , Issa R.M. 
Published: June 2015

AbstractA series of Co(II), Ni(II) and Cu(II) complexes of the type [M(PC)]2H2O and [M2(PC)]4H2O, where PC is phthaleincomplexone (metalphthalein), are synthesized. It is attempted to throw some light on (heir stoichiometry, structure and stability. The formation of 1:1 and 2:1 (M:L) complexes is confirmed by their elemental microanalysis. The compounds are characterized by IR, electronic absorption spectra, X‐band ESR spectra, magnetic moments and TGA measurements. The conditional stability constants are also determined.
Oxidative Dehydrogenation of 1‐Butene Over Magnetite
Authors: Liaw Biing‐Jye , Cheng Dong‐Shinh , Yang Sheng‐Jier , Yang Barry Lee‐Mean 
Published: June 2015

AbstractMagnetite (FC3O4), a partially reduced iron oxide, has long been considered as inactive in the oxidative dehydrogenation of butene. By studying a clean Fe3O4 powder, we found that Fe3O4, similar to other spinel ferrites, is not only active, but also more active and selective than α‐Fe2O3. The active site densities and the desorption temperatures of oxidation products on Fe3O4 were also measured. Fe3O4 is, however, unstable under flow reaction conditions. Even if the bulk of the oxide is stabilized in the form of Fe3O4 at high temperatures and low O2/C4 ratios, its surface is gradually oxidized to a form close to α‐Fe2O3, resulting in a decrease in both the activity and selectivity. The restructuring of the FC3O4 surface is temperature dependent. At 300°C, the high selectivity and activity of a low‐surface‐area Fe3O4 can be long preserved even if the bulk is oxidized to α‐Fe2O3.
Synthesis of 2‐Arylthiopyrano[2, 3‐d]Pyrimidines and Thieno[2, 3‐D]Pyrimidines
Authors: El‐Bahaie S. , Assy M.G. 
Published: June 2015

AbstractDiethyl thiopyrano[2,3‐d]pyrimidine‐6,7‐dicarboxylates 2a, b; thiopyrano[23‐d]pyrimidines 3a‐c and 4a‐c thieno[2,3‐d]pyrimidine‐6‐carbonitriles 5a‐c and thieno[2, 3‐d]pyrimidine‐6‐carboxamides 5d‐f have been prepared.
A Systematic Evaluation of Polyurethane as a Conformal Coating for the Inhibition of Corrosion on Electronic Components
Authors: Lin Yih‐Tsung , Hsien Chi‐Chen , Chang Jiin‐Chyuan , Liu Chong‐Yean 
Published: June 2015

AbstractThe corrosion of printed circuit boards can be effectively prevented with a polyurethane conformal coating. In this study, the protective performance of PU coating was investigated systematically through electrochemical measurements and simulated exposure/immersion tests. Some fungi tests were also included. All experimental results show that a polyurethane coating effectively inhibits corrosion on printed circuit boards. The optimal thickness of the coating film should be about 60 μm. Long‐term exposure tests showed that this coating material could preserve the reliability of the investigated printed circuit boards for more than 400 days in a 90% relative humidity environment at 25°C.
Synthesis of 2,6‐Disubstituted Fluorenones
Authors: Tsai Shiou‐Chuan , Liu Shiuh‐Tzung 
Published: June 2015

AbstractVarious 2,6‐disubstituted fluorenones 1a‐1g were synthesized by the dry salt decomposition of 5,4′ ‐disubstituted 2‐diazoniobenzophenone tetrafluoroborates 8a‐8g via Pschorr cyclization in reasonable yields.
A Study of Intramolecular Diels‐Alder Reactions of Allylamino Dienenitriles
Authors: Fang Jim‐Min , Wang Yu‐Wen , Duh Jing‐Min , Cheng Ming‐Chu , Yu‐Wang  
Published: June 2015

AbstractThe intramolecular Diels‐Alder reactions of 2‐allylanilino 3,5‐heptadienenitriles (3) produced equimolar amounts of perhydroisoindoles 4 and 5, the structures of which were determined by spectral methods, but also by X‐ray diffraction of 4a.
The Cyclosilylation of Methylcatechols with Dichlorodiorganosilanes
Authors: Yang Mei‐Hui , Yen Feng‐Ji 
Published: June 2015

AbstractBecause the extensive dπ‐pπ interaction between silicon and oxygen, the monomeric five‐membered ring products, (methyl‐1,2‐phenylenedioxy)diorganosilanes, rather than dimers were synthesized from methylcatechols and dichlorodiorganosilanes. In addition to the five‐membered ring products, the more stable seven‐membered‐ring cyclodisiloxanes were found. From the X‐ray diffraction data of these sevenmembered‐ring disiloxanes, the latter were found to be free of ring strain and to have better conjugation than the five‐membered ring species in the Si‐O‐C(Ar) moiety of the molecules.
The Constituents of the Bark of Armand Pine
Authors: Fang Jim‐Min , Tsai Wei‐Yu , Cheng Yu‐Shia 
Published: June 2015

AbstractTwenty three compounds were isolated from the bark of Pinus armandii. These compounds include nine serratenes (1‐9), a norserratenone 10, eight phenols 11‐18, two flavonoids 19‐20, one lignan 21, a diterpene 22 and a novel triterpendiol acetonide 23. Their structures were determined from their physical and spectral properties.
Degradation of Lignin Model Compounds in Organic Solvents. Part 1. Preliminary Studies
Authors: Aoyama Masakazu , Chen Chen‐Loung , Robert Danielle 
Published: June 2015

AbstractPreliminary studies were conducted on the degradation of guaiacylglycerol‐β‐aryl ether (β‐O‐4′), phenylcoumaran (β‐5′) and biphenyl (5–5′) type lignin model compounds in the organic solvent systems such as ethanol‐water (1:1, v/v) and 2‐butanone‐water (1:1, v/v), in the presence of a di‐ or trivalent inorganic salt to act as a Lewis acid in the temperature range 140–170°C and with a reaction time up to 60 minutes. The inorganic salts investigated include aluminum chloride, aluminum sulfate, ferric chloride, ferric sulfate, and stannic chloride. The results indicate that lignin model compounds of both phenolic and non‐phenolicβ‐O‐4′ types are susceptible to degradation in organic solvent systems in the presence of one of these salts. Stannic chloride was found to be the most suitable catalyst for the degradation of β‐O‐4′ type lignin model compounds in the organic solvent systems. In contrast, lignin model compounds of β‐5′ and 5–5′ types did not undergo degradation under the same reaction conditions. A possible reaction mechanism for the degradation of β‐O‐4′ type lignin model compounds in organic solvent system in the presence of stannic chloride is discussed.
Oscillator Strength Calculations with the Compromised Orbitals
Authors: Chang Tse‐Chiang , Chen Shing‐Yih 
Published: June 2015

AbstractThe oscillator strength has been calculated from a common set of compromised orbitals, instead of sets of the two separately optimized non‐orthogonal orbitals for the two states involved in the transition. Inaccuracies of two types arose from the calculations were assessed by investigating simple atomic and molecular systems.
Mössbauer Spectroscopic Studies of the Hydroxofluorostannate(IV) Complexes
Authors: Cheng Hwa‐Sheng 
Published: June 2015

AbstractMössbauer isomer shifts of 119Sn in a series of complexes K2Sn(OH)6‐mFm observed at 78 K were −0.05, −0.05, −0.24, −0.27 and −0.40 mm s−1, respectively, for m=0, 2, 4, 5 and 6. These IS values were linearly related to both m and (the average Pauling electronegativity of the ligands): . The IS straight line was compatible within experimental error with the one reported by Parish and Row‐botham for the hexahalogenostannate complexes SnX4Y22, namely, The revised IS straight line including both series of complexes could be expressed by the equation Quadrupole splittings observed in the complexes of m = 2,4 and 5 were 1.16, 0.80 and 0.73 mm s−1 respectively. They were linearly related to both m and .
Structures of Nickel(II) and Copper(II) Complexes of 14‐Membered Macrocyclic Quadridentate Ligands
Authors: Lu Tian‐Huey , Chung Chung‐Sun , Ashida Tamaichi 
Published: June 2015

AbstractThe structures of 41 Ni(II) and 17 Cu(II) complexes of macrocyclic quadridentate ligands have been analyzed, and are discussed about bond lengths, bond angles, conformations, and configurations, upon which many conclusions are formed. The inter‐ or intra‐molecular hydrogen bonds exist among ligands and hydrates in many compounds and play an important role in the structures. There are exhibited two distinct peaks on the histogram of the average Ni‐N distances, corresponding to four coordination and six coordination; these average Ni‐N distances are 1.95(4) Å and 2.10(5) Å, respectively. The most probable structures of Ni(II) macrocyclic compounds have coordination number six for the metal ion, chair forms for six‐membered rings, planar structure for the metal ion and the four donor atoms of the quadridentate ligand and an inversion center at the central metal ion.
The Syntheses and Crystal Structures of cis‐[Bis(diphenylphosphino)methane][1,2‐bis(diphenylphosphlno)ethane] dicarbonylmolybdenum(O) and cis‐[1,2‐Bis(diphenylphosphino)ethane] [cis‐1,2‐bis(diphenylphosphino) ethylene]dicarbonylmolybdenum(0)
Authors: Ueng Chuen‐Her , Lee Ryh‐Sheng 
Published: June 2015

AbstractThe title compounds, Mo(CO)2(Ph2PCH2PPh2)(Ph2PCH2CH2PPh2), Mo(CO)2(dppm)(dppe) 1, and Mo(CO)2(Ph2PCH2CH2PPh2)(Ph2PCH = CHPPh2), Mo(CO)2(dppe)(cis‐vpp) 2, were prepared from Mo(CO)6 and the corresponding bidentate diphosphine ligands in n‐decane under nitrogen atomosphere. Crystals of 1 are monoclinic, space group P 21/c, with a = 19.072(3), b = 11.348(3), c = 23.57(1) Å, β = 99.64(3)°, Z = 4, and the final residual R(F) = 0.044 for 4810 observed reflections; data of 2 are triclinic, space group P 1, with a = 12.091(3), b = 12.186(8), c = 18.934(5) Å, α = 96.93(4),β = 108.15(2), γ = 107.08(4)deg;, Z = 2, and the final residual R(F) = 0.058 for 4570 observed reflections. The distortion of compound 1 is more pronounced than that of compound 2, The two Mo‐P lengths in the same bidentate chelate ligand for both compounds are different. Among them, the two larger Mo‐P bond lengths for compound 2 are similar, but significantly different for 1.
Spectral Studies and Cathodic Reduction of some Thiazolylazo Derivatives
Authors: El‐Shahawy Anwar S. , Ismail Mohamed T. , Ahmed Seddique M. 
Published: June 2015

AbstractThe structure of the 2‐thiazolylazosalicylic acid molecule, TAS, has been determined by means of quantum SCF‐CI calculations. The ionization potential and the electron affinity of TAS molecule were calculated to have the values 9.057 and 2.56 eV respectively. The solvation energies in different solvents, and the bond orders of the TAS molecule were calculated for the neutral state, the oxidized form (the cation) and the reduced form (the anion). Mixed solvent studies were carried out with TAS and 2‐benzothiazolylazosalicylic acid (BTAS), using polar solvents (EtOH and MeOH) to confirm the formation of a solvent‐solute complex. The azo group in the TAS molecule nas a considerable contribution in the SCFLUMO; thus cathodic reduction has been focused on the azo group and was verified experimentally by cathodic reduction.
The Mass Spectra of Some 3,4‐Disubstituted Sydnones
Authors: Tien Hsien‐Ju , Fang Gwo‐Ming , Lin Shaw‐Tao , Tien Ling‐Ling 
Published: June 2015

AbstractThirty‐one mass spectra of the 3,4‐disubstituted sydnones have been measured under EI conditions. The fragmentation processes are cleavage of the 4‐substituent and a channel with loss of CO and NO. The competitive fragmentations depend upon the nature of the substituent on C(4).
Reactions of Diethyl [(3‐Bromomethyl‐2‐Thienyl)‐Methylene]Propanedioate with Hydrazines: Syntheses of Dihydropyridazines, Pyridazines and O‐Dimethylaminomethylarenecarbonitriles
Authors: Sha Chin‐Kang , Tsou Chiu‐Peng 
Published: June 2015

AbstractFacile syntheses of dihydropyridazines, pyridazines, and o‐dimethylaminomethylarenecarbonitriles have been achieved by the retro‐malonate addition reaction. Bromoalkylidenemalonates 1,7, and 10 were treated with hydrazine to give dihydropyridazines 4, 8, and 11 in quantitative yields. DDQ or air oxidation of 4, 8, and 11 gave pyridazines 5, 9, and 12, Alternatively, treatment of 1, 7, and 10 with 1,1‐dimethylhydrazine afforded o‐dimethylaminomethylarenecarbonitriles 6,13, and 14 in good yields.
Transformation of “Masked” 1,3‐Diols of Protected α‐D‐Erythro‐Hexopyranoside into Acyclic Forms. Chirons for Amphotericin B and Tetrin A
Authors: Liang David Woei‐Ming , Fraser‐Reid Bert 
Published: June 2015

AbstractMethyl 3‐O‐benzyl‐2,4‐dideoxy‐D‐erythro‐hexopyranoside 1a, a chiron for the C1‐C6 segment of amphotericin B and tetrin A, has been successfully converted to aldehyde 3; chloride 5d and iodide 7c in high yields, which are the acyclic forms of 1,3‐diols.
Transformation of “Masked” 1,3‐Diols of 1,2‐O‐Isopropylidene‐α‐D‐Erythro‐Hexofuranose into Acyclic Forms. Chirons for Amphotericin B
Authors: Liang David Woei‐Ming , Fraser‐Reid Bert 
Published: June 2015

Abstract3,5‐Dideoxy‐1,2‐O‐isopropylidene‐α‐D‐erythro‐hexofuranose 1 was readily converted to dithianyl amide 8, which is a convenient acyclic form of 1,3‐diol, in high yield.