α-DERIVATIVES OF g-(2,4-DI-TERT-AMYL-PHENOXY)-PROPANE AS INTERMEDIATE PRODUCT FOR PRODUCTION OF g-(2,4-DI-TERT-AMYL-PHENOXY)-PROPYLAMIDE-1-OXY-NAPHTHOIC-2-ACID Russian patent published in 1997 - IPC

Abstract SU 1570264 A1

FIELD: organic chemistry. SUBSTANCE: desired products being trisubstituted benzenes have common formula 2,4-tert-a where R is Cl, or Br or phthalimide group. Synthesis is carried out by condensation of 2,4-di-tert-amyl-phenol with 1,3-dichloro- or 1,3-dibromopropane. The process takes place at 80-120 C in alcohol or alcohol-toluene medium in the presence of alkali agents. Yield of the product having formula g (a) is 84 %, yield of the product having formula g (b) is 82 %. Thus prepared compounds are then heated with potassium phthalimide at 160-170 C, the process takes place in dimethylformamide. Desired product having essential formula C₅H₁₁-C₆H₃-O(CH₂-)₃-R is prepared at yield 93 %. EFFECT: higher efficiency of products.

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SU 1 570 264 A1

Authors

Jutilov Ju.M.

Svertilova I.A.

Minkina L.V.

Dates

1997-02-27—Published

1987-12-23—Filed