A New approach to 1,7-dioxaspiro[5.5]undec-4-enes via metallated allenol ethers. Synthesis of Lacrimin A
作者:Andrew Takle、Philip Kocieński
DOI:10.1016/s0040-4020(01)85578-2
日期:1990.1
Key steps in the first total synthesis of Lacrimin A (2) include (a) the use of methoxyallene as an enone-1,3-dianion equivalent; (b) the use of a new copper-catalysed migratory insertion reaction to construct a tri-substituted alkene stereoselectively; and (c) the use of a Pd(O)-catalysed coupling reaction to generate an isochromanone ring.
A synthesis of vitamin E in racemic or optically active forms from methacryolein or beta-hydroxyisobutyric acid including intermediates in this synthesis.
从甲基丙烯醛或β-羟基异丁酸中合成光学活性或外消旋形式的维生素E,包括在这个合成中的中间体。
Protected alcohols
申请人:Hoffmann-La Roche Inc.
公开号:US04191842A1
公开(公告)日:1980-03-04
A synthesis of vitamin E in racemic or optically active forms from methacryolein or beta-hydroxyisobutyric acid including intermediates in this synthesis.
从甲基丙烯酰或β-羟基异丁酸中合成光学活性或外消旋形式的维生素E,包括在此合成过程中的中间体。
Intermediates in the synthesis of vitamin E
申请人:Hoffmann-La Roche Inc.
公开号:US04051153A1
公开(公告)日:1977-09-27
A synthesis of vitamin E in racemic or optically active forms from methacryolein or beta-hydroxyisobutyric acid including intermediates in this synthesis.
从甲基丙烯酰基或β-羟基异丁酸合成光学活性或外消旋形式的维生素E,包括在合成过程中的中间体。
Stereochemistry of palytoxin. Part 1. C85-C115 segment
作者:L. L. Klein、W. W. McWhorter、S. S. Ko、K. P. Pfaff、Y. Kishi、D. Uemura、Y. Hirata