http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002220381-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2f8cfa5aee4410611b5c562275c9f8e3 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D291-06 |
| filingDate | 2001-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b1a1dab3fa2bb78d6d863ee6d27ea4f4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_03b1daebe883778ffd8b25f84614e64c |
| publicationDate | 2002-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2002220381-A |
| titleOfInvention | Process for producing 3,4-dihydro-1,2,3-oxathiazines or salts thereof |
| abstract | PROBLEM TO BE SOLVED: To provide a method capable of industrially advantageously producing 3,4-dihydro-1,2,3-oxathiazine or a salt thereof. SOLUTION: In the present invention, a sulfonic acid represented by the following formula (1) is subjected to a cyclization dehydration reaction in the presence of an acid anhydride to give a 3,4-dihydro- represented by the following formula (2). 1, Produce 2,3-oxathiazines or salts thereof. As the acid anhydride, an acid anhydride composed of at least one selected from sulfonic acid, halogenated sulfuric acid, pyrophosphoric acid, nitric acid and boric acid is used. Embedded image (Wherein R 1 and R 2 are the same or different and each represent a hydrogen atom or a reaction-inactive organic group, and R 3 binds to a hydrogen atom, a reaction-inactive organic group, or a nitrogen atom to form a salt. And X represents an organic or inorganic base which forms a salt with a hydrogen atom or a sulfonate group. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11724994-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11724993-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11718594-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7408059-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11731948-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107868064-A |
| priorityDate | 2001-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 108.