Synthesis of 3,3a-Dihydro-2H,5H-azetobenzo-1,3-oxazine-2,5-dione, I
The thioformimidates 4, which may be obtained by S-alkylation of the thioformamides 3, react with chloroacetylchloride/triethylamine to yield the (3R, 4S/3S, 4R)-3-chloro-4-methylthio-2-azetidinones 5.Dehalogenation of 5 leads to 6, which undergoes ring c
Ongania, Karl-Hans,Schwarzenbrunner, Ulrike,Humer, Karin
p. 215 - 222
(2007/10/02)
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