Synthesis of bis-β,β′-spiro-pyrrolidinyl-oxindoles, containing a rhodanine fragment
摘要:
The synthesis of isatilidene derivatives of N-alkylrhodanines has been carried out with dipolarophiles and unstable azomethine ylides, generated in situ from sarcosine and paraformaldehyde. A series of chiral pyrrolidinyl-oxindoles spirofused in the beta,beta'-positions has been synthesized in the result of cycloaddition in high yield and diastereoselectivity.
Synthesis of bis-β,β′-spiro-pyrrolidinyl-oxindoles, containing a rhodanine fragment
摘要:
The synthesis of isatilidene derivatives of N-alkylrhodanines has been carried out with dipolarophiles and unstable azomethine ylides, generated in situ from sarcosine and paraformaldehyde. A series of chiral pyrrolidinyl-oxindoles spirofused in the beta,beta'-positions has been synthesized in the result of cycloaddition in high yield and diastereoselectivity.