14086-08-9Relevant academic research and scientific papers
Efficient and rapid experimental procedure for the synthesis of furan diol from d-glucal using ionic liquid
Teijeira, Marta,Fall, Yagamare,Santamarta, Francisco,Tojo, Emilia
, p. 7926 - 7929 (2007)
A new efficient and rapid experimental method and product isolation procedure as well as easy recyclable reaction media is expected to contribute to the development of a green strategy for the synthesis of furan diol from d-glucal. We determine the best conditions of reaction, minimizing the toxicity and finding an environmentally more acceptable process, using [Bmim][MSO4]/InCl3·3H2O as a new solvent system under extremely mild conditions, providing high yields with a dramatic enhancement of reaction rate.
Metal-catalyzed transformation of D-glucal to optically active furan diol
Hayashi, Masahiko,Kawabata, Hirotoshi,Yamada, Kanako
, p. 965 - 966 (1999)
The treatment of D-glucal with a catalytic amount of Sm(OTf)3 or RuCl2(PPh3)3 in the presence of 1 equiv. of H2O afforded optically active furan diol in good yield under mild conditions.
Enantioselective synthesis of 2-deoxy- and 2,3-dideoxyhexoses
Haukaas, Michael H.,O'Doherty, George A.
, p. 1771 - 1774 (2002)
The enantioselective syntheses of C-6 O-TBS- and N-Cbz-protected 2-deoxy- and 2,3-dideoxysugars have been achieved in 6-8 steps from furfural. A combination of chemo-, regio-, and diastereoselective oxidation and reduction reactions produced deoxysugars w
Montmorillonite clay catalyzed synthesis of enantiomerically pure 1,2,3,4-tetrahydroquinolines
Yadav,Reddy,Meraj, Syeda,Vishnumurthy,Narsimulu,Kunwar
, p. 2923 - 2926 (2006)
Arylamines undergo smooth cyclization with 2-deoxy-D-ribose on the surface of montmorillonite KSF clay under mild conditions to afford the corresponding sugar-derived chiral tetrahydroquinolines in high yields with moderate diastereoselectivity. The assignment of the stereochemistry of the product was achieved by various NMR studies. Georg Thieme Verlag Stuttgart.
Kinetic resolution of racemic 2-(2-furyl)-2-hydroxyethyl acetate in the presence of PS lipase
Kaminska, Janina E.,Smigielski, Krzysztof,Lobodzinska, Danuta,Gora, Jozef
, p. 1211 - 1215 (2000)
Kinetic resolution of racemic 2-(2-furyl)-2-hydroxyethyl acetate by transesterification with vinyl acetate in the presence of Amano PS lipase, yielding (1R)-1-(2-furyl)ethane-1,2-diol diacetate with 98% ee and (2S)-2-(2-furyl)-2-hydroxyethyl acetate with
Diastereoselective Weitz-Scheffer epoxidation of levoglucosenone for the synthesis of isolevoglucosenone and derivatives
Ledingham, Edward T.,Greatrex, Ben W.
, p. 6107 - 6115 (2018/09/14)
High-yielding epoxidation conditions for the cellulose pyrolysis product (?)-levoglucosenone (LGO) and 3-aryl derivatives of LGO have been developed. The reaction of LGO with hydrogen peroxide/base is known to give a Baeyer-Villiger reaction, however, it was found that the reactions of LGO or derivatives with tert-butylhydroperoxide/base affords solely epoxides through the Weitz-Scheffer reaction. A critical parameter in the successful isolation of the epoxide from LGO was to avoid all contact with water or alcohols during the reaction and workup. The epoxide products were reacted under Wharton conditions affording allylic alcohols and subsequent oxidation led to isolevoglucosenone or 3-arylisolevoglucosenone derivatives. Previously unreported reactions on isolevoglucosenone were then investigated.
Kinetic Resolution of 1,2-Diols via NHC-Catalyzed Site-Selective Esterification
Liu, Bin,Yan, Jiekuan,Huang, Ruoyan,Wang, Weihong,Jin, Zhichao,Zanoni, Giuseppe,Zheng, Pengcheng,Yang, Song,Chi, Yonggui Robin
supporting information, p. 3447 - 3450 (2018/06/26)
A kinetic resolution of 1,2-diols bearing both a secondary and a primary alcohol motif through an N-heterocyclic carbene-catalyzed oxidative acylation reaction has been developed. A site- and enantioselective esterification reaction is involved for this process. Both the monoacylated diols obtained and the remaining enantioenriched 1,2-diols are versatile building blocks for the preparation of functional molecules with proven biological activities.
Synthesis of (-)-muricatacin from tri- O -acetyl- d -glucal
González, Maria,Gándara, Zoila,Pazos, Gonzalo,Gómez, Generosa,Fall, Yagamare
supporting information, p. 625 - 632 (2013/04/10)
The total synthesis of (-)-muricatacin is achieved using commercially available tri-O-acetyl-d-glucal as the starting material. The structure of the intermediate chiral butenolide is established unambiguously by X-ray crystallographic analysis, which consequently leads to correction of a previous structural misassignment. Georg Thieme Verlag Stuttgart. New York.
Synthesis of carba analogs of 6-O-(benzyl)-d-allal- and -d-galactal-derived allyl epoxides and evaluation of the regio- and stereoselective behavior in nucleophilic addition reactions
Di Bussolo, Valeria,Frau, Ileana,Checchia, Lorenzo,Favero, Lucilla,Pineschi, Mauro,Uccello-Barretta, Gloria,Balzano, Federica,Roselli, Graziella,Renzi, Gabriele,Crotti, Paolo
scheme or table, p. 4696 - 4709 (2011/06/27)
The new racemic diastereoisomeric epoxides 6α and 6β, the carba analogs of the corresponding d-galactal- and d-allal-derived allyl epoxides have been synthesized and their regio- and stereoselective behavior examined in addition reactions with model O-, C-, N-, and S-nucleophiles. The results have indicated that epoxide 6β has a pronounced tendency toward anti-1,2-addition, whereas epoxide 6α shows interesting levels of syn- and/or anti-1,4-addition processes. A chiral recognition process found with epoxide 6β, turned out to be consistently reduced in epoxide 6α. All the results have been rationalized on the basis of conformational, steric, and stereoelectronic effects.
Developing a diastereoselective intramolecular [4 + 3] cycloaddition of nitrogen-stabilized oxyallyl cations derived from N-sulfonyl-substituted allenamides
Lohse, Andrew G.,Hsung, Richard P.,Leider, Mitchell D.,Ghosh, Sunil K.
scheme or table, p. 3246 - 3257 (2011/07/09)
Efforts toward achieving a practical and diastereoselective intramolecular [4 + 3] cycloaddition of nitrogen-stabilized oxyallyl cations with tethered dienes are described. Epoxidation of N-sulfonyl substituted allenamides with dimethyldioxirane (DMDO) generates nitrogen-stabilized oxyallyl cations that readily undergo stereoselective [4 + 3] cycloaddition with dienes. Selectivity is found to depend on the tethering length as well as the stability of the oxyallyl cation intermediate, whether generated from N-carbamoyl- or N-sulfonyl-substituted allenamides. The use of chiral N-sulfonyl-substituted allenamides provided minimal diastereoselectivity in the cycloaddition, while high diastereoselectivity can be achieved with a stereocenter present on the tether. These studies provide further support for the synthetic utility of allenamides.
