http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2342265-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_df4e72183c5ee38a234212562dca6570 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-48 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-00 |
| filingDate | 1976-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1977-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | FR-2342265-A1 |
| titleOfInvention | PROCESS FOR PREPARING HALOGENOACETALS FROM ESTERS |
| abstract | The acetals of halo ethylenic aldehydes of formula (I) are prepd. from an ester (II) by treatment with a cationic halogen (Cl+, Br+, or I+), followed by prim. or sec. alcohol or a glycol. (where R1 - R5 = H, 1-6C alkenyl, or o-6C alkenyl, not having the double bond in position 1-2; n = 0-4; R6 = 1-6C alkyl or the tow groups R6 = R'6-where R'6 = 2-6C alkylene, opt. substd. by OH or alkoxy of 1-4C; X = Cl, Br or I R = 1-6C alkyl). Cpds. are intermediates for organic synethses., esp. for preparation of retinal (Vit A aldehyde). A typical compound (I) is 1,1-dimethoxy-3-methyl-4-chloro-2-butene b.pt. 38-38.5 degrees C. This was prepd. from 1-acetoxy-3-methyl-1,3-butadiene by treatment with t. butyl hypochlorite followed by methanol. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0414228-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0414228-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111072622-A |
| priorityDate | 1976-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.