Sulfur ylides 13. Synthesis and intramolecular cyclization of keto-stabilized sulfur ylides
作者:F. Z. Galin、I. M. Sakhautdinov、S. N. Lakeev、V. A. Egorov、A. A. Fatykhov、I. O. Maidanova
DOI:10.1007/s11172-006-0202-6
日期:2005.12
were obtained from N-phthalylglutamic acid and their intramolecular cyclization was studied. The intramolecular cyclization of the ylide obtained at the α-carboxy group gave a product of the pyrrolizidinedione structure; bisylide yielded a cycloheptene derivative as the result of intramolecular recombination of intermediate dicarbene. The ylide obtained at the γ-carboxy group underwent no cyclization
Redox-economical synthesis of α-substituted α-N-phthaloyl amino aldehydes using Fukuyama reduction
作者:Riko Genka、Satoru Arimitsu
DOI:10.1016/j.tetlet.2024.154938
日期:2024.3
A three-step redox-economical synthesis of α-substituted α-N-phthaloyl aldehydes was developed using Fukuyama reduction from commercially available amino acids. The developed method provided various α-substituted α-N-phthaloyl aldehydes (16 entries) in 29–98 % yields. The developed protocol was reproducible on a large scale.