Record no |
201103039645 |
Activity status |
Active |
Working Title |
PROCESS FOR THE PREPARATION OF DIALKYL CARBONATE |
Working Inventors |
SRINIVAS DARBHA;SRIVASTAVA RAJENDRA;RATNASAMY PAUL; |
Contributing institutions |
NCL |
Administered by |
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Ownership |
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Categories > Subjects |
Catalysis |
Categories > Portfolio |
Fine chemical/pharma intermediate drugs/bioactives |
Disclosure number |
2005-INV-0024 |
NCL No |
2005-NCL-0024 |
CSIR No |
2005-NF-0181
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Priority date |
10-07-2005 |
Country |
US |
Application number |
11/394136 |
Provisional filing date |
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Complete filing date |
03-30-2006 |
Publication status |
Yes |
Publication date |
05-14-2009 |
Publication no |
7518012 B2 |
Granted number |
7518012 |
Granted date |
04-14-2009 |
Final title |
PROCESS FOR THE PREPARATION OF DIALKYL CARBONATE |
Final Inventors |
SRINIVAS DARBHA;SRIVASTAVA RAJENDRA;RATNASAMY PAUL; |
Abstract |
The present invention provides a process for the preparation of dialkyl carbonates of general formula 1 wherein R alkyl C1 C8 or C6H5CH2 the said process comprises a reaction in between cyclic carbonate and alcohol in the presence of a solid double metal cyanide complex catalyst at a temperature in the range of 140 180° C. for a period of 4 10 hrs followed by the separation of catalyst from the above said reaction mixture by known methods to obtain the desired product. |
Case status |
Granted + Inforce |
Licensing status |
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Licensing case no |
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Client name |
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Lead inventors |
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Categories > Industry > Primary |
Organic Chemicals, Fine Chemicals, Intermediates, Feedstocks |
Categories > Industry > other |
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