Enantioselective bioreduction of 2-fluoro-2-alken-1-ols mediated by Saccharomyces cerevisiae
摘要:
Biocatalytic reduction of 2-fluoro-2-alken-1-ols mediated by Saccharomyces cerevisiae underwent smoothly and yielded (S)-2-fluorinated alkanols with high enantioselectivities. The conversion rate was markedly depending on the configuration of alkene moiety of the substrate, the chain length of alkyl group at beta position of C=C bond, as well as the reaction conditions. (C) 2011 Elsevier B.V. All rights reserved.
Synthesis of fluorinatedanalogs of some dienic insect sex pherormones through a stereocontrolled Wittig reaction of β-fluorinated aldehydes with the appropriate ω-functionalized ylides is reported. Some features of the 1H and 19F NMR spectra of these analogs are also discussed.
据报道,通过β-氟化醛与适当的ω-官能化的乙炔的立体控制的Wittig反应,合成了一些二齿昆虫性信息素的氟化类似物。还讨论了这些类似物的1 H和19 F NMR光谱的某些特征。
USE OF SOLUBLE EPOXIDE HYDROLASE INHIBITORS IN THE TREATMENT OF SMOOTH MUSCLE DISORDERS
申请人:Webb Hsu Heather K.
公开号:US20090270452A1
公开(公告)日:2009-10-29
Disclosed herein are compounds, compositions, and methods for enhancing smooth muscle function in a subject by administration of soluble epoxide hydrolase inhibitors and for treating subjects with smooth muscle disorders including erectile dysfunction, overactive bladder, uterine contractions and irritable bowel syndrome.
Zinc-Diethylaluminium Chloride Induced Coupling Reaction of Dibromofluoroacetate with Carbonyl Compounds. New Efficient and Selective Synthesis of α-Bromo-α-fluoro-β-hydroxy and α-Fluoro-β,β′-dihydroxy Esters
Treatment of ethyl dibromofluoroacetate with aldehydes or ketone in the presence of zinc and diethylaluminium chloride at −20 °C gave rise to the corresponding α-bromo-α-fluoro-β-hydroxy alkanoic a...