Constrained cycloalkyl analogues of glutamic acid: stereocontrolled synthesis of (+)-2-aminobicyclo[3.1.0]hexane-2,6-dicarboxylic acid (LY354740) and its 6-phosphonic acid analogue
作者:Jerzy Krysiak、Wanda H. Midura、Wanda Wieczorek、Lesław Sieroń、Marian Mikołajczyk
DOI:10.1016/j.tetasy.2010.04.051
日期:2010.6
yield of 27% starting from the enantiopure (+)-(R)-2-(p-tolylsulfinyl)cyclopent-2-enone 3. The key steps include asymmetric cyclopropanation of 3 with (dimethylsulfuranylidene)acetate (EDSA) and removal of the chiral p-tolylsulfinyl auxiliary from the cycloadduct ent-4c upon treatment with iso-propylmagnesium chloride. The stereoselective hydantoin formation from the bicyclicketone 6 formed (Bucherer–Bergs
Posner, Gary H.; Weitzberg, Moshe; Jew, Sang-sup, Synthetic Communications, 1987, vol. 17, # 6, p. 611 - 620
作者:Posner, Gary H.、Weitzberg, Moshe、Jew, Sang-sup
DOI:——
日期:——
A short, asymmetric synthesis of natural (-)-methyl jasmonate
作者:Gary H. Posner、Edward Asirvatham
DOI:10.1021/jo00214a041
日期:1985.7
Additive Pummerer rearrangements. Asymmetric synthesis of (–)-methyl jasmonate
作者:Gary H. Posner、Edward Asirvatham、Syed F. Ali
DOI:10.1039/c39850000542
日期:——
Examples of mild, additive Pummerer rearrangements are given; one example involves asymmetric carbon–carbon bond formation as the key step for synthesis of (–)-methyljasmonate.