Invention Grant
US08420869B2 Process for the preparation of 2,2,4,4-tetraalkylcyclobutane-1,3-diols
有权
制备2,2,4,4-四烷基环丁烷-1,3-二醇的方法
- Patent Title: Process for the preparation of 2,2,4,4-tetraalkylcyclobutane-1,3-diols
- Patent Title (中): 制备2,2,4,4-四烷基环丁烷-1,3-二醇的方法
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Application No.: US12963698Application Date: 2010-12-09
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Publication No.: US08420869B2Publication Date: 2013-04-16
- Inventor: Zhidong Zhu , Gerald Charles Tustin , Philip Conrad Heidt , Zhufang Liu
- Applicant: Zhidong Zhu , Gerald Charles Tustin , Philip Conrad Heidt , Zhufang Liu
- Applicant Address: US TN Kingsport
- Assignee: Eastman Chemical Company
- Current Assignee: Eastman Chemical Company
- Current Assignee Address: US TN Kingsport
- Agent Jennifer R. Knight; Eric D. Middlemas
- Main IPC: C07C29/145
- IPC: C07C29/145 ; C07C35/04
Abstract:
Disclosed is a process for the preparation of a 2,2,4,4-tetraalkylcyclobutane-1,3-diol by hydrogenation of the corresponding 2,2,4,4-tetraalkylcyclobutane-1,3-dione in the vapor phase in the presence of a supported catalyst. The process is useful for the preparation of 2,2,4,4-tetramethylcyclobutane-1,3-diol from 2,2,4,4-tetramethylcyclobutane-1,3-dione. The process can produce a 2,2,4,4-tetraalkylcyclobutane-1,3-diol product having a cis:trans isomer ratio of 1:1 or greater.
Public/Granted literature
- US20120149947A1 PROCESS FOR THE PREPARATION OF 2,2,4,4-TETRAALKYLCYCLOBUTANE-1,3-DIOLS Public/Granted day:2012-06-14
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