Process for ortho-cyanation of phenols or phenylamines

Details Process for ortho-cyanation of phenols or phenylamines Process for ortho-cyanation of phenols or phenylamines

1987-08-21

1988-09-27

Raymond, Richard L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544 51, 544 52, 544102, 544105, 544347, 544353, 540605, 540609, 546165, 546223, 546230, 548444, 548491, 548557, 548561, 558376, C07C 4308

Patent

active

047743310

ABSTRACT:
A process for ortho-cyanation of phenols or phenylamines which comprises reacting a phenyl compound having hydroxy or optionally substituted amino or cyclic amino, of which ortho position is vacant, with trichloroacetonitrile, C.sub.1 -C.sub.5 alkyl thiocyanate or C.sub.6 -C.sub.12 aryl thiocyanate in the presence of a boron trihalide and treating the resultant product with an alkali is provided, and said process is useful in the synthesis of intermediates for medicinals or pesticides.

REFERENCES:
G. R. Bedford et al., "A Convenient Preparation . . . ," 1959, pp. 1633-1634.
I. B. Johns et al., "Coordination Compounds . . . ," vol. 27, 7/24/61, pp. 592-594.
Houben et al., Ber., vol. 63 (1930) pp. 2464-2473.

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