Chiral squaramide catalyzed synthesis of C4 substituted chiral pyrazol-3-ol derivatives via a facile asymmetric Michael addition of 3-methyl-2-pyrazolin-5-one to β-nitrostyrenes

Chiral squaramide catalyzed synthesis of C4 substituted chiral pyrazol-3-ol derivatives via a facile asymmetric Michael addition of 3-methyl-2-pyrazolin-5-one to β-nitrostyrenes

Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 57, Issue 11, 16 March 2016, Pages 1227-1231

Kadiyala Srinivasa Rao, Pambala Ramesh, Rajiv Trivedi, M. Lakshmi Kantam,