Some aspects of intramolecular carbocyclization of methyl (2E)-3-[(1S,2R,5R)-2-({[tert-butyl(dimethyl)-silyl]oxy}methyl)-5-(trimethylsilyl)cyclopent-3-en-1-yl]prop-2-enoate and its derivatives
作者:A. M. Gimazetdinov、A. Z. Al’mukhametov、L. V. Spirikhin、M. S. Miftakhov
DOI:10.1134/s1070428017060057
日期:2017.6
Treatment of methyl (2E)-3-[(1S,2R,5R)-2-([tert-butyl(dimethyl)silyl]oxy}methyl)-5-(trimethylsilyl) cyclopent-3-en-1-yl]prop-2-enoate with Bu4NF in THF resulted in intramolecular cyclization with formation of bicyclo[3.1.0]hexene structure. Possible ways of cyclopropane ring closure were discussed. Methyl (2E)-3-[(1R,4R,5S)-5-formyl-4-(trimethylsilyl)cyclopent-2-en-1-yl]prop-2-enoate failed to undergo
甲基(2 E)-3-[(1 S,2 R,5 R)-2-(叔丁基(二甲基)甲硅烷基]氧基}甲基)-5-(三甲基甲硅烷基)环戊-3-烯的处理在THF中具有Bu 4 NF的-1-基]丙-2-烯酸酯导致分子内环化并形成双环[3.1.0]己烯结构。讨论了环丙烷闭环的可能方法。(2 E)-3-[(1 R,4 R,5 S)-5-甲酰基-4-(三甲基甲硅烷基)环戊-2-烯-1-基]丙-2-烯酸酯甲酯未经历分子内Baylis–希尔曼反应。