http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0413643-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_28a869d6fc950d50f6df03f549ca3afa |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D317-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D319-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D317-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-313 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D319-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate | 1990-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ddcbe4dc8b3ad469a36c848c40fe5ca3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6a8705bffffe17d5a05cd54d4029de27 |
| publicationDate | 1992-01-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H0413643-A |
| titleOfInvention | Production of chloroacetals |
| abstract | PURPOSE: To obtain acyclic or cyclic chloroacetals in high purity independent of production of raw materials by reacting a monochloracetoaldehyde trimer with a 1-5C mono- or dihydric alcohol in the presence of an acid catalyst or a dehydrating agent. n CONSTITUTION: A monochloroacetaldehyde(MCA) monomer is reacted with a 1-5C mono- or dihydric alcohol in the presence of an acid catalyst, e.g. p- toluenesulfonic acid or dilute sulfuric acid or a dehydrating agent such as anhydrous calcium chloride at ≥120°C, preferably 130-160°C temperature under ordinary or higher pressure. Thereby, MCA trimer capable of stably existing for a long period is used as a raw material for acetalization to industrially and advantageously provide acyclic or cyclic chloroacetals useful as a raw material for medicines or polymer compounds in high purity. Furthermore, the MCA trimer may be heated in the presence of the acid catalyst to afford a monomer, which is then reacted with the aforementioned alcohol. n COPYRIGHT: (C)1992,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002234886-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002234885-A |
| priorityDate | 1990-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.