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2 125 035

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C1

(51)

IPC

(21) (22)

Application

97104986/04, 1997-04-01

(22)

Actual filing date

1997-04-01

(45)

Published

1999-01-20

(72)

Inventor

Mudryj F.V.Spitsyn A.A.

(73)

Holder

Volgogradskoe Otkrytoe Aktsionernoe Obshchestvo

METHOD OF PREPARING BENZYL CHLORIDE Russian patent published in 1999 - IPC

Abstract RU 2125035 C1

FIELD: preparation of medicinal and flavoring agents, and means for protection of plants. SUBSTANCE: benzyl chloride is prepared by hydrochlorination of dibenzyl ether with hydrochloric acid at 90-97 C in the presence of catalyst. Said catalyst is zinc chloride at dibenzyl ether to zinc chloride molar ratio of 1: 1-0.75. Process is carried out when gaseous hydrogen chloride is passed through reaction mixture. Use of readily available and cheap catalyst makes it possible to cut down duration of reaction and to increase by 5-7% yield of the final product. EFFECT: more efficient preparation method. 2 cl, 5 ex, 1 tbl

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RU 2 125 035 C1

Authors

Mudryj F.V.

Spitsyn A.A.

Dates

1999-01-20—Published

1997-04-01—Filed

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