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2 086 550

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C1

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IPC

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Application

95119619/04, 1995-11-21

(22)

Actual filing date

1995-11-21

(45)

Published

1997-08-10

(72)

Inventor

Kantor E.A.Khlebnikova T.D.Mel'Nitskaja G.A.

(73)

Holder

Ufimskij Gosudarstvennyj Neftjanoj Tekhnicheskij Universitet

METHOD FOR PRODUCTION OF 2-(FURYL-2)-1,3-DIOXANES Russian patent published in 1997 - IPC

Abstract RU 2086550 C1

FIELD: agriculture, production of growth regulator for plants. SUBSTANCE: 2-(furyl-2)-1,3-dioxanes having formula where R1 is H or C1-C4 alkyl, R2 is H, C1-C4 alkyl, hydroxy C1-C4 alkyl, R3,R4 and R5 are H or C1-C4 alkyl is prepared by interaction of polyhydric alcohol having formula where R1-R5 are mentioned above with furfurol, molar ratio of ingredients is 1.1:1, respectively. The process is carried out at room temperature in the presence of 10 % sulfuric acid, its quantity being 10 ml per 1 mole of furfurol. Then cooling of reaction mixture and adding water into it at the beginning of crystallization are carried out to isolate desired product by cooling of aqueous suspension of emulsion. EFFECT: improved efficiency.

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RU 2 086 550 C1

Authors

Kantor E.A.

Khlebnikova T.D.

Mel'Nitskaja G.A.

Dates

1997-08-10—Published

1995-11-21—Filed

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