公开(公告)号：US3709943A

公开(公告)日：1973-01-09

申请号：US3709943D

申请日：1970-08-17

申请人： MAC MILLAN BLOEDEL LTD

发明人： CARTLIDGE D ,  HACH V ,  LOCKHART R

IPC分类号： C07C45/67 ,  C07C45/85 ,  C07C49/26

CPC分类号： C07C45/67 ,  C07C45/85 ,  C07C49/427

摘要： AN IMPROVED PROCESS IS DESCRIBED FOR RECOVERING D-ISOTHUJONE FROM A MIXTURE CONTAINING 2-THUJONE AND D-ISOTHUJONE WHICH COMPRISES CONTACTING SUCH MIXTURE CONTAINING AT LEAST 35% BY WEIGHT OF D-ISOTHUJONE WITH AN AQUEOUS BISULFITE SOLUTION SO AS TO FORM AN ADDUCT OF DISOTHUJONE AND BISULFITE AND DECOMPOSING THE ADDUCT TO OBTAIN PURE D-ISOTHUJONE. THE THUJONE MIXTURE PREFERABLY CONTAINS AT LEAST 70% BY WEIGHT OF THE TWO THUJONES AND THE RATIO OF THE THUJONES CAN BE ADJUSTED BY ISOMERIZATION.

公开(公告)号：US3708521A

公开(公告)日：1973-01-02

申请号：US3708521D

申请日：1970-12-04

申请人： MAC MILLAN BLOEDEL LTD

发明人： HACH V ,  HIGSON H

IPC分类号： C11B9/00 ,  C07C69/76

CPC分类号： C11B9/0049

摘要： NOVEL CINNAMATE ESTERS OF THUJANOLS ARE DESCRIBED HAVING THE STRUCTURAL FORMULA:

2-R1,2-R2,3-R3,3-R4,7-((H3C-)2CH-)NORCARANE

WHEREIN R1 AND R2 ARE DIFFERENT AND REPRESENT HYDROGEN OR METHYL AND R3 AND R4 ARE DIFFERENT AND REPRESENT HYDROGEN OR

PHENYL-CH=CH-COO-

THESE ESTERS ARE POWERFUL ODORIFEROUS COMPOUNDS WHICH ARE EXCELLENT SUBSTITUTES FOR NATURAL STYRAX.