Stereoselective conjugate addition of lithium (phenylthio)(trimethylstannyl) cuprate to .alpha.,.beta.-acetylenic esters. Preparation of (E)- and (Z)-4-lithio-1,3-pentadienes and their reaction with electrophiles
Stereoselective conjugate addition of lithium (phenylthio)(trimethylstannyl) cuprate to .alpha.,.beta.-acetylenic esters. Preparation of (E)- and (Z)-4-lithio-1,3-pentadienes and their reaction with electrophiles
作者:Matthieu J. R. Richter、Michael Schneider、Marco Brandstätter、Simon Krautwald、Erick M. Carreira
DOI:10.1021/jacs.8b09685
日期:2018.12.5
The first synthesis of (-)-mitrephorone A is disclosed along with discussion and study of synthetic strategies. The natural product includes a highly congested hexacyclic ent-trachylobane diterpenoid framework featuring a rare, embedded oxetane. The synthetic analysis presented dissects a number of approaches for the synthesis of the central oxetane, including carbonyl-olefin photocycloadditions, Prins-type
(-)-mitrephorone A 的首次合成与合成策略的讨论和研究一起公开。天然产物包括高度拥挤的六环戊二烯二萜骨架,其特征是稀有嵌入的氧杂环丁烷。合成分析展示了多种合成中心氧杂环丁烷的方法,包括羰基-烯烃光环加成、Prins 型环化和氧化闭环。在成功的路线中,三个 [4 + 2] 环加成能够快速构建所有碳环。羟基二酚与 Koser 试剂的新型后期氧化环化提供了关键的氧杂环丁烷部分。
A diels-alder approach to -fused, angularly methylated decalins
作者:Steven D. Burke、Tory H. Powner、Masanori Kageyama
DOI:10.1016/s0040-4039(00)85946-8
日期:1983.1
PIERS E.; MORTON H. E., J. ORG. CHEM., 1980, 45, NO 21, 4263-4264
作者:PIERS E.、 MORTON H. E.
DOI:——
日期:——
BURKE, S. D.;POWNER, T. H.;KAGEYAMA, M., TETRAHEDRON LETT., 1983, 24, N 42, 4529-4532