C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/559, 260/576
C07C 49/457 (2006.01) C07C 49/697 (2006.01)
Patent
CA 1155132
Abstract of the Disclosure Novel dichlorocyclobutanones of the formula: Image (A) in which Z is hydrogen and Z1 is chlorine, or Z1 is hydrogen and Z is chlorine or a group of the formula Image wherein R1 and R2 each independently represents hydrogen, halogen, methyl, methoxy, trifluoromethyl or cyano, or R1 and R2 together represent methylene- dioxy or a group -CH=CH-CH=CH- are disclosed, together with processes for their manufacture. The compounds (A) are useful as intermediates in the preparation of certain cyclopropanecarboxylic acid esters.
402558
Bissig Peter
Greuter Hans
Gsell Laurenz
Fetherstonhaugh & Co.
Novartis Ag
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