Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d648658dd620f548c24de39659a5e9e3 |
classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-02 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-317 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-307 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-00 |
classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-35 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-317 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-307 |
filingDate |
2001-07-19^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6a834e9022f64547fbeffdd0afcf8a96 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f529d1f416ca78c5160e48ab85cd8583 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6963e4c5b7c269ecaeebd417a8b44d70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3782f389f6e9e4f308774568057df8e9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c2eee6f7343f0f99fee6e26eddf0b39b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e8da888d211c7896b3ddd50edcd8f08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cb0e1159ee246fdbbddb2b1048b7c784 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cfb760c6454ce1a7856a5bac022c71e0 |
publicationDate |
2002-02-07^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
WO-0210116-A2 |
titleOfInvention |
Process for the preparation of alkyl 1-methylcyclopropanecarboxylate |
abstract |
Disclosed is a 4-step process for the preparation of alkyl esters of 1-methylcyclopropanecarboxylic acid which comprises the steps of (1) converting η-butyrolactone to α-methyl-η-butyrolactone; (2) converting the α-methyl-η-butyrolactone from step (1) to an alkyl 4-halo-2-methyl-butyrate; (3) producing a xylene solution of the alkyl 4-halo-2-methyl-butyrate; and (4) contacting the xylene solution of the alkyl 4-halo-2-methylbutyrate from step (3) with an alkali metal alkoxide under conditions to temperature and pressure which causes vaporization of (i) an alkanol as it is fomred and (ii) an alkyl 1-methylcyclopropanecarboxylate as it si formed from the alkyl 4-halo-2-methylbutyrate. Also disclosed are processes whereby the alkyl 1-methylcyclopropanecarboxylate, prepared as described above, is converted to 1-methylcyclopropylamine. |
priorityDate |
2000-08-01^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |