Nouvelle voie d'accès stéréosélective aux esters acryliques et son application en chimie des sucres
作者:Jean-Michel Vatèle
DOI:10.1016/0008-6215(85)85194-6
日期:1985.2
Abstract Regio- and stereo-selective synthesis of an acryl residue by treatment of an allyl alcohol with (Z,E)-1-fluoro-1-methoxy-2-phenylsulfinylpropene was performed in three consecutive reactions in the same flask; displacement of F− by the alcohol, Claisen rearrangement, and dehydrosulfinylation. Thus, 1,5-anhydro-2-deoxy-4,6-O-isopropylidene- d -arabino-hex-1-enitol gave methyl 3,7-anhydro-6,8-O-benzylidene-2
摘要在同一烧瓶中连续三个反应中,用(Z,E)-1-氟-1-甲氧基-2-苯基亚磺酰基丙烯对烯丙醇进行区域和立体选择性合成丙烯残基。酒精取代F-,克莱森重排和脱氢亚磺酰化。因此,1,5-脱水-2-脱氧-4,6-O-异亚丙基-d-阿拉伯-己-1-烯醇得到甲基3,7-脱水-6,8-O-亚苄基-2,4,5 -三乙氧基-2-C-亚甲基-d-核辛基-4-烯酸酯和甲基2-O-烯丙基-4,6-二脱氧-α-d-赤-己基-4-烯吡喃糖苷得到甲基(2-O甲基-手性季C-5原子的-烯丙基-3,4,6-三甲氧基-5-C-甲基-6-C-亚甲基-α-1-苏-庚-3-烯吡喃糖苷)-尿酸酯。