The First Method for Protection−Deprotection of the Indole 2,3-π Bond
摘要:
[GRAPHIC]The scope and generality of a new reaction of indoles with MTAD is discussed. In most cases the ene-type reaction proceeds within seconds or minutes at 0 degreesC to provide the urazole adducts in high yield. This reaction provides the first method for protecting the indole 2,3-double bond since the urazole adducts can be reconverted to the starting indole (retro-ene) simply by heating.
The First Method for Protection−Deprotection of the Indole 2,3-π Bond
摘要:
[GRAPHIC]The scope and generality of a new reaction of indoles with MTAD is discussed. In most cases the ene-type reaction proceeds within seconds or minutes at 0 degreesC to provide the urazole adducts in high yield. This reaction provides the first method for protecting the indole 2,3-double bond since the urazole adducts can be reconverted to the starting indole (retro-ene) simply by heating.
The First Method for Protection−Deprotection of the Indole 2,3-π Bond
作者:Phil S. Baran、Carlos A. Guerrero、E. J. Corey
DOI:10.1021/ol034634x
日期:2003.5.1
[GRAPHIC]The scope and generality of a new reaction of indoles with MTAD is discussed. In most cases the ene-type reaction proceeds within seconds or minutes at 0 degreesC to provide the urazole adducts in high yield. This reaction provides the first method for protecting the indole 2,3-double bond since the urazole adducts can be reconverted to the starting indole (retro-ene) simply by heating.