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1 529 686

(13)

A1

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IPC

(21) (22)

Application

4354115/04, 1987-12-04

(22)

Actual filing date

1987-12-04

(45)

Published

1996-03-10

(72)

Inventor

Zhivajkin Ju.A.Marinicheva G.E.Rozhnov A.A.

METHOD FOR PRODUCTION OF DERIVATIVES OF 1,3-DIMETHOXY-1,3,8,9-TETRAHYDRO-4,7-METHANE ISOBENZOFURAN Russian patent published in 1996 - IPC

Abstract SU 1529686 A1

FIELD: organic chemistry. SUBSTANCE: dicyclopentadiene interacts with derivative of 2,5-dimethoxy-2,5-dihydrofuran, their molar ratio being (0.7-1.0):1. The process is carried out within 3.5-4.0 h at 150-160 C in the presence of initiator. Desired product is used as said initiator, its quantity being 1 mole per 60-80 moles of derivative of 2,5-dimethoxy-2,5-dihydrofuran. Desired product is isolated by distillation. Desired products having essential formulae C11H16O3,, C12H18O3; and C13H20O3 are prepared at yield 88 %, 78 % and 83 % respectively. Their n20d

are 1.4868, 1.4918 and 1.5090 respectively. EFFECT: increases yield of desired products, intensifies the process. 4 tbl

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SU 1 529 686 A1

Authors

Zhivajkin Ju.A.

Marinicheva G.E.

Rozhnov A.A.

Dates

1996-03-10—Published

1987-12-04—Filed

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