METHOD FOR PREPARING 2,10-EPOXYPINANE Russian patent published in 2007 - IPC C07D301/12 C07D303/04 

Abstract RU 2303034 C1

FIELD: organic chemistry, chemistry of terpene compounds.

SUBSTANCE: invention relates to a method for synthesis of 2,10-epoxypinane (β-pinene epoxide). Method involves epoxidation of β-pinene double bond with diluted hydrogen peroxide in an aqueous solution of polar solvents (methanol, N,N-dimethylformamide or acetonitrile) under condition of catalytic effect of manganese sulfate in the presence of sodium hydrocarbonate and salicylic acid. Then epoxide and β-pinene are extracted with aliphatic solvent from the reaction mixture. Polar and aliphatic solvents can be used repeatedly. At final step 2,10-epoxypinane is isolated from crude epoxide by distillation under vacuum with purity degree 95% and the yield 60-70%. Invention provides the development of technological method for synthesis of intermediate compound used in preparing some medicinal, technical and perfume preparations.

EFFECT: improved method of synthesis.

7 ex

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RU 2 303 034 C1

Authors

Bakhvalov Oleg Vasil'Evich

Fomenko Vladislav Viktorovich

Salakhutdinov Nariman Faridovich

Dates

2007-07-20Published

2005-12-26Filed