Process for producing cyanoformate esters

Details Process for producing cyanoformate esters Process for producing cyanoformate esters

C - Chemistry, Metallurgy

07

C

C07C 255/18 (2006.01) C07C 253/30 (2006.01) C07C 261/02 (2006.01)

Patent

CA 2243691

Alkyl, aralkyl or aryl cyanoformate esters having from one to 20 carbon atoms are prepared by anhydrously reacting stoichiometric amounts of the corresponding alkyl, aralkyl or aryl haloformate and an organosilyl nitrile in the presence of a catalytic amount of a tertiary amine base, preferably 1,4-diazabicyclo[2.2.2]octane, in the absence or presence of an inert solvent. The reaction is conducted at a temperature of from about -30°C to 70°C, preferably at from about 5°C to 30°C.

Des esters cyanoformiates d'alkyle, d'aralkyle ou d'aryle, composés de 1 à 20 atomes de carbone, sont préparés en faisant réagir par voie anhydre des quantités stoechiométriques d'haloformiate d'alkyle, d'aralkyle ou d'aryle correspondant et un cyanure d'organosilyle en présence d'une quantité catalytique d'une amine tertiaire, préférablement le 1,4-diazabicyclo¢2.2.2!octane, en présence ou non d'un solvant inerte. La réaction a lieu à une température d'environ -30 à environ 70 degrés C, préférablement dans une plage d'environ 5-30 degrés C.

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