http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S59170045-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-00 |
| filingDate | 1983-03-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_44c2250e8066309259124c9a9c1701ba |
| publicationDate | 1984-09-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S59170045-A |
| titleOfInvention | Preparation of 3-halo-5-nitrosalicylaldehyde |
| abstract | PURPOSE: To prepare the titled compound useful as a synthetic intermediate of agricultural chemicals, pharmaceuticals, etc., in high yield and purity, by reacting 8-halo-6-nitro-1,3-benzodioxane with bromine, and hydrolyzing the reaction product. n CONSTITUTION: The objective compound of formula II can be prepared by reacting 8-halo-6-nitro-1,3-benzodioxane of formula I (X is halogen) with bromine at 70W110°C for 2W10hr in a solvent such as carbon tetrachloride, acetic acid, etc., and hydrolyzing the reaction product at 20W80°C for 30minW24hr in the presence of excess water. The amount of bromine is 1W4 equivalent based on the compound of formula I . The reaction can be promoted by the addition of a radical initiator such as benzoyl peroxide, azobisisobutyronitrile, etc. or irradiation with light. n COPYRIGHT: (C)1984,JPO&Japio |
| priorityDate | 1983-03-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.