Synthesis of both enantiomers of methylenolactocin, nephrosterinic acid and protolichesterinic acid via tandem aldol–lactonization reactions
摘要:
Both forms of the enantiomerically pure methylenolactocin, nephrosterinic and protolichesterinic acid have been synthesized via tandem aldol-lactonization reactions from corresponding optically active itaconate-anthracene adducts. (C) 2001 Elsevier Science Ltd. All rights reserved.
An aldol - bislactonization route to α-methylene bis-γ-butyrolactones
摘要:
The syntheses of alpha-methylene gamma-butyrolactones and alpha-methylene bis-gamma-butyrolactones are made simple through the use of the versatile dimethyl itaconate - anthracene adduct, 1. (C) 1998 Elsevier Science Ltd. All rights reserved.
Strategic use of retro Diels-Alder reaction in the construction of β-carboxy-α-methylene-γ-lactones. Total synthesis of methylenolactocin and protolichesterinic acid
作者:Anjan Ghatak、Subrata Sarkar、Subrata Ghosh
DOI:10.1016/s0040-4020(97)10157-0
日期:1997.12
A facile route for the construction of β-carboxy-α-methylene-γ-lactone unit is described using retro Diels-Alderreaction as the key step. Using this protocol, total synthesis of (±)-methylenolactocin and (±)-protolichesterinic acid has been achieved.