Arylsulphonyl azetidine compounds, their preparation and...

Details Arylsulphonyl azetidine compounds, their preparation and... Arylsulphonyl azetidine compounds, their preparation and...

C - Chemistry, Metallurgy

07

D

260/335.5

C07D 205/04 (2006.01) C07D 491/10 (2006.01) C07D 491/113 (2006.01)

Patent

CA 1194886

ABSTRACT ARYLSULPHONYL AZETIDINE COMPOUNDS, THEIR PREPARATION AND THEIR USE AS INTERMEDIATES Azetidine compounds of the general formula I Image (I) wherein Ar represents an aryl group and X represents a hydrogen atom, a carboxyl group or a hydroxymethyl group; their preparation from pentaerythritol via compounds of formula Image (V), Image (IV), and Image (III), Image (II), wherein Hal represents chlorine, bromine or iodine, Y represents oxygen or Image and Z represents Hal or OH, together with their use as inter- mediates in the preparation of 3-carboxyazetidine; also the compounds of formula Image (VI) wherein R1 and R2 both represent hydrogen, or together represent Image

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