Dimethyl azidomalonate (4) is photolyzed under loss of nitrogen and rearrangement of one methoxycarbonyl group to form the mixture of Z and E isomers of the α,β-unsaturated amino acid esters 8 and 9.On photolysis of isopropyl- and isobutylazidomalonates 10 migration of the alkyl group is observed exclusively.The (alkylimino)malonates 14 so formed have been hydrogenated and hydrolyzed to give the N-alkylglycine derivatives 16.
Frank, Juergen,Stoll, Gerhard,Musso, Hans
p. 1990 - 1996
(2007/10/02)
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