| 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
|
| Priority date |
10-07-2005 |
| Country |
US |
| Application number |
11/394136 |
| Provisional filing date |
|
| 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 |
|
| 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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