Tetrahedron p. 2217 - 2228 (1996)
Update date:2022-08-17
Topics:
Murugesh
Subburaj
Trivedi
A synthesis of novel pterocarpans (8a-3, 10a-c and 11a-e) and pterocarpenes (7a-d and 9a-c) has been carried out. This method involves the Lewis acid Ti(IV) promoted formal (3 + 2) cycloaddition reaction of 2-alkoxy-1,4-benzoquinones (6a-c) with appropriately substituted 2H-chromenes (1a-b, 2a-b and 5) at -78°C.
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Doi:10.1016/S0960-894X(01)00353-5
(2001)Doi:10.1021/acs.chemrestox.9b00038
(2019)Doi:10.1016/S0040-4039(00)00445-7
(2000)Doi:10.1002/zaac.200300209
(2003)Doi:10.14233/ajchem.2013.15681
(2013)Doi:10.1002/cctc.202000010
(2020)
