Process for the preparation of bicycloheptane derivatives,...

C - Chemistry – Metallurgy – 07 – D

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C07D 493/08 (2006.01) C07C 29/10 (2006.01) C07C 29/40 (2006.01) C07C 35/18 (2006.01) C07C 35/48 (2006.01) C07C 43/178 (2006.01) C07C 45/51 (2006.01) C07C 45/68 (2006.01) C07D 303/14 (2006.01)

Patent

CA 1255320

70474-116 ABSTRACT OF THE DISCLOSURE PROCESS FOR THE PREPARATION OF BICYCLOHEPTANE DERIVATIVES, AND NOVEL BICYCLOHEPTANE DERIVATIVES A process for the preparation of a 2-exo-hydroxy-7-oxa- bicyclo[2.2.1]heptane, wherein the corresponding cis 3,4-expoxy- cyclohexanol is cyclised by treatment with an acid, in an inert solvent. These compounds find use as intermediates in processes for the preparation of herbicides, in which the 2-exo-hydroxy group is converted into an ether, for example to provide the corresponding 2-exo-benzyloxy compound.

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