PRODUCTION OF ALLYL COMPOUND

Japanese Patent JP3882462

B2

PROBLEM TO BE SOLVED: To obtain in high conversion and selectivity without causing metal deposition an allyl compound useful as an intermediate for producing tetrahydrofuran and medicaments and the like by isomerization of an allyl material compound through allyl rearrangement in the presence of a specific catalyst.
SOLUTION: This allyl compound is obtained by incorporating a solvent (e.g. acetic acid) with a compound having at the allyl site an acyloxy group of the formula; RAC(O) (RA is a 1-10C alkyl or the like) or hydroxy group (e.g. 3,4-diacetoxybutene-1,3,4-dihydroxybutene-1), a group 8,9 or 10 metal compound (e.g. palladium acetate) and a phosphite compound followed by carrying out a reaction pref. at 50-200°C; wherein the amount of the metal compound to be used is pref. 1×10-8 to 1 molar equivalent based on the raw material and the molar ratio of the phosphite compound to the metal compound is pref. 0.1-10,000.

Letbol michael
Yoshinori Hara
Nao Urata
Hironobu Ohno

JP2000114609A

February 14, 2007

April 17, 2000

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Mitsubishi Chemical Corporation

C07C67/293; C07D307/08; B01J31/24; C07B61/00; C07C27/02; C07C29/149; C07C29/56; C07C31/20; C07C33/03; C07C69/155; C07C69/527; C07F9/145; C07F9/6574; B01J31/28; (IPC1-7): C07C67/293; B01J31/24; C07C27/02; C07C29/149; C07C29/56; C07C31/20; C07C33/03; C07C69/527; C07D307/08; //C07B61/00; C07F9/145; C07F9/6574

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US4095030

Hasegawa Soji

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