发明名称 |
9-hydroxymethyl-7,12-dioxaspiro[5,6]dodecane, 9-(2-hydroxyethyl)-7,11-dioxaspiro [5,5]undecane and a process for preparing said 9-(2-hydroxyethyl)-7,11-dioxaspiro [5,5]undecane |
摘要 |
Described herein is a process for the preparation of 9 (2-hydroxyethyl)-7, 11-dioxaspiro (5,5) undecane by reacting Cis-but-2-2ene-1,4 diol with cyclohexanone in the presence of a heterogeneous sulphonated nitro coal acid catalyst to obtain 7, 12-dioxaspiro (5,6) dodec-9-ene which is reacted with syngas in the presence of a catalyst, namely RhH (CO) (TPP)3, to obtain 9-formyl-7, 12-dioxaspiro (5,6) dodecane which is reduced and the reduced product is rearranged to yield 9-(2-hydroxyethyl)-7,11-dioxaspiro [5,5] undecane.
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申请公布号 |
US5864046(A) |
申请公布日期 |
1999.01.26 |
申请号 |
US19970910395 |
申请日期 |
1997.08.13 |
申请人 |
COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH |
发明人 |
PARDHASARADHI, MALLADI;KAMALAKSHYAMMA, CHEMBUMKULAM;SATYANARAYANA, ARSID |
分类号 |
C07D319/08;C07D321/10;(IPC1-7):C07D319/08 |
主分类号 |
C07D319/08 |
代理机构 |
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代理人 |
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