专利号:US-4269773-A 优先权日:1976-04-27 标 题:Fused oxazolidine compounds 发明人:MITSURU YOSHIOKA; TERUJI TSUJI; YASUHIRO NISHITANI; WATARU NAGATA 权利人:SHIONOGI & CO 摘要:Compounds represented by the following formula prepared from 6-aminopenicillanic acid are key intermediates in a stereo-specific synthesis of 1-oxadethiacephalosporins, highly active antibiotics: +TR [wherein COA and COB each is carboxy or protected carboxy; COX is carboxy, protected carboxy, or a group of the formula -COCQ=N2 or -COCHQ-Z (in which Q is hydrogen, lower alkyl or aryl; and Z is hydrogen or a nucleophilic group); Hal is halogen; R is lower alkyl or aralkyl; and Y is hydrogen or acyl].
参考标题:Application Of Silicon-Initiated Water Splitting For The Reduction Of Organic Substrates 作者:Ashot Gevorgyan,Satenik Mkrtchyan,Tatevik Grigoryan,Viktor O. Iaroshenko |发布日期:2018.5 摘要:Several Important Classes Of Organic Compounds Is Described. It Is Found That The Reductive Water Splitting Can Be Promoted By Several Metalloids Among Which Silicon Shows The Best Efficiency. The Developed Methodologies Were Applied For The Reduction Of Nitro Compounds, N-Oxides, Sulfoxides, Alkenes, Alkynes, Hydrodehalogenation As Well As For The Gram-Scale Synthesis Of Several Substrates Of Industrial
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