Synthesis of 2,4‐difuryl‐4
H
‐3,1‐benzothiazines via a furan ring migration reaction
摘要:
Abstractmagnified imageA new simple synthetic approach to 2,4‐difuryl‐4H‐3,1‐benzothiazines from 2‐isothiocyanoaryldifuryl‐methanes in the presence of acidic catalyst is described. This rearrangement is a new example of furan ring migration reaction resulting from intramolecular attack with electrophilic carbon.
Synthesis of 2,4‐difuryl‐4
H
‐3,1‐benzothiazines via a furan ring migration reaction
摘要:
Abstractmagnified imageA new simple synthetic approach to 2,4‐difuryl‐4H‐3,1‐benzothiazines from 2‐isothiocyanoaryldifuryl‐methanes in the presence of acidic catalyst is described. This rearrangement is a new example of furan ring migration reaction resulting from intramolecular attack with electrophilic carbon.
Synthesis of 2,4‐difuryl‐4
<i>H</i>
‐3,1‐benzothiazines via a furan ring migration reaction
作者:Vladimir T. Abaev、Fatima A. Tsiunchik、Alexander V. Butin、Andrey V. Gutnov
DOI:10.1002/jhet.5570450227
日期:2008.3
Abstractmagnified imageA new simple synthetic approach to 2,4‐difuryl‐4H‐3,1‐benzothiazines from 2‐isothiocyanoaryldifuryl‐methanes in the presence of acidic catalyst is described. This rearrangement is a new example of furan ring migration reaction resulting from intramolecular attack with electrophilic carbon.