Tetrahedron

A novel photochemical ring contraction of 11a-methylpterocarpans

…, K Narayanan, KK Balasubramanian, K Rajagopalan

Index: Ramakanth, S.; Narayanan, K.; Balasubramanian, K. K.; Rajagopalan, K. Tetrahedron, 1986 , vol. 42, # 3 p. 863 - 876

Full Text: HTML

Citation Number: 3

Abstract

A novel photochemical ring contraction of 6H-(benzofuro)(3, 2-c)(1) 11a, 6a-dihydro-11a- methylbenzopyrans, 1 or shortly, 11a-methylpterocarpans to the respective 4b, 9b-dihydro- 4b, 9b-dimethylbenzofuro (3, 2-b) benzofurans 2 is reported. This transformation of 1→ 2 ...