Process for the manufacture of dicyanovinyl compounds

Details Process for the manufacture of dicyanovinyl compounds Process for the manufacture of dicyanovinyl compounds

1975-03-27

1977-02-01

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260251R, 260283CN, 260287T, 260307R, 2603096, 260310R, 260310A, 2603191, 2603268, 260329R, 260329AM, 2603461R, 260465E, 2604654, C07D21506, C07C12154

Patent

active

040061787

ABSTRACT:
Process for the manufacture of aromatic, heteroaromatic or aliphatic compounds which contain at least one radical of the formula ##STR1## wherein R denotes a hydrogen atom or an alkyl, cycloalkyl or aralkyl radical, characterized in that an aromatic or heteroaromatic compound, which carries one or more electron-donating substituent with negative Brown substitution constants .delta..sub.p .sup.+ and without mobile hydrogen atoms, a .pi.-excess-hetero-aromatic compound or a CH-acid compound is reacted with a 2,2-dicyanoethylene of the formula ##STR2## wherein X is a halogen atom, preferably chlorine or bromine, and R has the abovementioned meaning, without the presence of Lewis acids, in an anhydrous, preferably organic, medium, with an acid-binding agent optionally being added as a further component.

REFERENCES:
stagi et al., Chem. Abstr., vol. 78:159283b; (1973).
B403,076, Apr. 20, 1976, Carter, 260/465 E.

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