http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-806935-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7058371bcb2a1a6f311dd202b017b6b0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07H13-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07H13-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07H13-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07H13-04 |
| filingDate | 1956-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1959-01-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-806935-A |
| titleOfInvention | Process of reacting carbohydrates and polyhydric alcohols derived therefrom with various reagents |
| abstract | At least one hydroxy group of a carbohydrate or polyhydric alcohol derived therefrom is reacted with a reagent reactive with said hydroxy group in an inert solvent selected from 2-pyrrolidone and N-methyl-2-pyrrolidone (for numerous specified reagents see Group IV (b)). In examples: (2) octastearyl sucrose is used together with dioctyl phthalate to plasticise polyvinyl chloride; (5) sucrose is reacted with maleic anhydride in N-methyl-2-pyrrolidone to give a high molecular weight compound of probable formula <FORM:0806935/IV (a)/1> which may be further reacted through the double bond with polymerizable vinyl compounds such as styrene; (8) sucrose is reacted with 1,4-dichloro-2-butyne in 2-pyrrolidone to give a product of general formula <FORM:0806935/IV (a)/2> which may be further reacted with polyamines through the unsaturated bond; (14) inulin is reacted with maleic anhydride in N-methyl-2-pyrolidone to give a high molecular weight compound of probable formula <FORM:0806935/IV (a)/3>ALSO:At least one hydroxy group of a carbohydrate or polyhydric alcohol derived therefrom is reacted with a reagent reactive with said hydroxy group in an inert solvent selected from 2-pyrrolidone and N-methyl-2-pyrrolidone. The method may be used for esterifying the hydroxy compound with organic or inorganic acids (many specified), acid anhydrides or acid halides or by alcoholysis; nitrous anhydride gives nitrous esters; phosphorus oxychloride gives phosphates; zinc chloramine gives amines. The action of phosphorus tri- or penta-halides gives halo-derivatives from which may be obtained: nitriles by reaction with KCN; thio alcohols by reaction with KSH; phosphates by reaction with silver phosphate and amines by reaction with ammonia. Reaction with an alkali metal such as Na, K or Li gives carbohydralates or alcoholates which may be recovered by evaporation or precipitation with dioxan; these metal derivatives may be reacted with halides, including those prepared by the process of the invention, to give ethers. Numerous mono-, di-, tri- and poly-saccharides and carbohydrate alcohols are mentioned as suitable. In examples: (1) and (10) sodium sucrosate and sodium glucosate respectively are prepared by reacting the sugar with sodium metal dissolved in N-methyl-2-pyrrolidone; (2) and (6) octastearyl sucrose, (3) tetrastearyl sucrose, (11) octastearyl rhamnose, and (12) tetrastearyl threose are prepared by the action of stearyl chloride on the sugar in solution in one or other pyrrolidone; (4) sucrose and (13) raffinose are reacted with acetic anhydride in N-methyl-2-pyrrolidone to give, probably, sucrose and raffinose tetra-acetates; (7) a partially chlorinated sucrose is prepared by the action of sulphuryl chloride on sucrose in N-methyl-2-pyrrolidone; (9) alcoholysis is effected between sucrose and cottonseed oil in the presence of sodium methylate in N-methyl-2-pyrrolidone. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7989546-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3087970-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015143169-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10344304-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2008141765-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8496994-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3495998-A |
| priorityDate | 1956-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 75.