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Application

3963250/04, 1985-10-11

(22)

Actual filing date

1985-10-11

(45)

Published

1995-10-20

(72)

Inventor

Prosenko A.E.Markov A.F.Pinko P.I.Krysin A.P.Koptjug V.A.

METHOD OF SYNTHESIS OF 4-HALOIDALKYL-2,6-DITERT-BUTYLPHENOLS Russian patent published in 1995 - IPC

Abstract SU 1376511 A1

FIELD: organic chemistry. SUBSTANCE: product: 4-haloidalkyl-2,6-ditert. -butylphenols of the formula where R - tert. -butyl and R1= H at n 1-3, or R1= CH3 at n 2, Tal Cl, Br. Method involves interaction of corresponding hydroxyalkyl-2,6-ditert.-butylphenols with halogenating agent at 50-100 C in the medium of solvent (dimethylformamide), and process is carried out at the mole ratio of hydroxyalkyl-2,6-ditert. -butylphenol halogenating agent dimethylformamide (0.8-3):1:(1-3) for 1-3 hr. The yield of the end products is up to 98% among of that 4-(3-bromo-1-methylpropyl)-2,6-ditert.-butylphenol is a new compound. Synthesized compounds were used as semiconductors for synthesis of polymer stabilizing agents. EFFECT: increased yield of products. 1 tbl

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SU 1 376 511 A1

Authors

Prosenko A.E.

Markov A.F.

Pinko P.I.

Krysin A.P.

Koptjug V.A.

Dates

1995-10-20—Published

1985-10-11—Filed

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