Highly selective synthesis of 6-substituted benzothiophenes by Sc(OTf)3-catalyzed intermolecular cyclization and sulfur migration
2016 ◽
Vol 3
(12)
◽
pp. 1619-1623
◽
A series of 6-substituted benzo[b]thiophenes was synthesized using a Sc(OTf)3-catalyzed intermolecular cyclization between para-substituted N-(arylthio)succinimides and alkynes taking advantage of a unique and selective 1,2-sulfur migration occuring via an electrophilic ipso cyclization to a key spirocyclic thiete intermediate.
Keyword(s):
2015 ◽
Vol 2
(3)
◽
pp. 319-338
◽
2016 ◽
Vol 3
(2)
◽
pp. 168-175
◽
Keyword(s):
2011 ◽
Vol 29
(11)
◽
pp. 2389-2393
◽
Keyword(s):