- Ring expansion of sulfur substituted p-quinamines: regiospecific synthesis of 4-aminotropones.
Ring expansion of sulfur substituted p-quinamines: regiospecific synthesis of 4-aminotropones.
Chemical communications (Cambridge, England) (2005-02-19)
M Carmen Carreño, M Jesús Sanz-Cuesta, María Ribagorda
PMID15719098
ABSTRACT
Synthesis of 4-aminotropones through a cyclization-ring expansion process occurs in a single step and with excellent yields from 4-amino-2,5-cyclohexadienones (p-quinamines) bearing a 4-sulfinyl or sulfonyl methyl group.
MATERIALS