Enantioselective total synthesis of (−)-kainic acid and (+)-acromelic acid C <i>via</i> Rh(<scp>i</scp>)-catalyzed asymmetric enyne cycloisomerization
作者:Honghui Lei、Shan Xin、Yifan Qiu、Xumu Zhang
DOI:10.1039/c7cc07967b
日期:——
A diversity-oriented synthetic strategy was developed for the totalsynthesis of kainoid amino acids, which led to the enantioselective synthesis of (−)-kainic acid and the first totalsynthesis of (+)-acromelic acid C. Rh(I)-catalyzed asymmetric enyne cycloisomerization served as the key reaction in this strategy for the rapid construction of highly functionalized lactam, and the resulting vinyl acetate
Tandem Wittig−Ene Reaction Approach to Kainic Acid
作者:Mahesh S. Majik、Peruninakulath S. Parameswaran、Santosh G. Tilve
DOI:10.1021/jo900196t
日期:2009.5.1
example of a tandem Wittig−intramolecular ene reaction approach and its application toward the synthesis of kainicacid is reported. The synthetic pathway involves conversion of prenyl bromide into phosphorane 3, followed by one-pot Wittig olefination and an ene reaction with glyoxalic acid to give the cis fused pyrrolidine skeleton of kainicacid.