http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H01146862-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2cb72657cf0479385a9b5e655af1e16f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41M5-3336 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C319-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C313-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C323-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-333 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 |
| filingDate | 1987-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be0ad18659a69bc51f6c4178bb78bcbd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_077e8ebb0bbf4230ccfc9c7f2daa2e3e |
| publicationDate | 1989-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H01146862-A |
| titleOfInvention | Production of di(hydroxyphenylthio)dioxaheptane |
| abstract | PURPOSE:To obtain the title compound in high crystallization conversion and high yield, in the form of high purity crystal, by reacting mercaptophenol with a bis(haloethoxy)methane in a specific solvent in the presence of an alkali, adding water to the reaction product and adjusting the mixture to a specific temperature. CONSTITUTION:Mercaptophenol is made to react with a bis(haloethoxy)methane in 40-2,000ml (based on 1mol of the mercaptophenol) of a water-soluble organic solvent (e.g., methanol, acetone or ethyl acetate) in the presence of an alkali (e.g., NaOH) at 0-150 deg.C under normal pressure for 0.1-12hr. The solution produced by the reaction is added with water, the temperature of the mixture is adjusted to the boiling point (Tb) of the water-soluble organic solvent or thereabove, usually between Tb and Tb+40 deg.C and the mixture is slowly cooled at a cooling rate of 5-20 deg.C/hr to obtain the objective compound [1,7-di(4- hydroxyphenylthio)-3,5-dioxaheptane] having large particle size and useful as a color-developer for heat-sensitive recording paper. |
| priorityDate | 1987-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.