1,3-dipolar cycloaddition reaction of alpha,beta-unsaturated esters and lactones with diazomethane.

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1,3-dipolar cycloaddition reaction of alpha,beta-unsaturated esters and lactones with diazomethane.

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Title: 1,3-dipolar cycloaddition reaction of alpha,beta-unsaturated esters and lactones with diazomethane.
Author: BASKARAN, S; VASU, J; PRASAD, R; KODUKULLA, K; TRIVEDI, GK; CHANDRASEKHAR, J
Abstract: 1,3-Dipolar cycloaddition of diazomethane to the alpha,beta-unsaturated esters and lactones such as 2-4, 6-8, 10 and 13 occurs in a stereoselective manner affording conjugated Delta(2)-pyrazolines. E and Z isomers of D-mannitol lead to identical product which was cyclised to investigate the absolute stereochemistry of the product. The regiospecificities of all the reactions are consistent with FMO coefficients obtained through AM1 calculations.
URI: http://dx.doi.org/10.1016/0040-4020(96)00099-3
http://dspace.library.iitb.ac.in/xmlui/handle/10054/10376
http://hdl.handle.net/10054/10376
Date: 1996


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