135490-87-8Relevant articles and documents
THE REACTION OF SOME SUBSTITUTED BENZILS AND HETEROCYCLIC ANALOGS WITH CHLOROSULFONIC ACID
Cremlyn, Richard J.,Lynch, John M.,Swinbourne, Frederick J.
, p. 173 - 179 (2007/10/02)
The chlorosulfonation of a number of unsymmetrical benzils gave substituted benzofurans.Ring closure is dependent upon the electronic character of the substituent groups and can be controlled by electronwithdrawing groups.The reaction of the 2-thienyl ana