Stereoselective preparation of Z-1,2-diarylallyl chlorides and t

Details Stereoselective preparation of Z-1,2-diarylallyl chlorides and t Stereoselective preparation of Z-1,2-diarylallyl chlorides and t

1992-12-07

1993-12-07

Cintins, Marianne M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

570144, 570192, C07C 1724

Patent

active

052685179

ABSTRACT:
The preparation of Z-1,2-diarylallyl chlorides of the general formula I ##STR1## in which R.sup.1 and R.sup.2, independently of one another, are hydrogen, halogen, alkyl, haloalkyl, alkoxy, haloalkoxy or a substituted aromatic radical, and n and m are 1, 2 or 3, by dehydrating chlorohydrins of the formula II ##STR2## in which the radicals are as defined above, at up to 50.degree. C. in an inert ether or carboxylic acid ester as solvent and in the presence of a carboxylic anhydride and an organic or inorganic acid, the conversion thereof into azolylmethyloxiranes, and novel intermediates are described.

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Ho et al., "Elimination Reactions in the 1,2-Diphenyl-2-Propyl System", Tetrahedron, vol. 26, pp. 4277-4286, 1970.
Streitwieser et al., Introduction to Organic Chemistry, pp. 563-564, 1970.
Morrison and Boyd, Organic Chemistry, pp. 281, 486-487, 318-319, (1983).
The Merck Index of Chemicals and Drugs, 7th edition pp. 6-7, (1960).

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