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Regioselective synthesis of substituted pterocarpans and pterocarpenes. Lewis acid Ti(IV) promoted formal (3+2) cycloaddition reactions

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Title Regioselective synthesis of substituted pterocarpans and pterocarpenes. Lewis acid Ti(IV) promoted formal (3+2) cycloaddition reactions
 
Creator MURUGESH, MG
SUBBURAJ, K
TRIVEDI, GK
 
Description A synthesis of novel pterocarpans (8a-e, 10a-e and 11a-e) and pterocarpenes (7a-d and 9a-c) has been carried out. This method involves the Lewis acid Ti (TV) 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 degrees C.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2011-08-26T06:52:39Z
2011-12-26T12:57:20Z
2011-12-27T05:47:26Z
2011-08-26T06:52:39Z
2011-12-26T12:57:20Z
2011-12-27T05:47:26Z
1996
 
Type Article
 
Identifier TETRAHEDRON, 52(6), 2217-2228
0040-4020
http://dx.doi.org/10.1016/0040-4020(95)01052-1
http://dspace.library.iitb.ac.in/xmlui/handle/10054/11230
http://hdl.handle.net/10054/11230
 
Language en