PROCESS FOR PREPARING CARBOXYLIC ACID CHLORIDE DERIVATIVES
PURPOSE: A method for preparing carboxylic chloride compounds whose chloride is substituted from the lactone compound is provided, to improve the production yield with lowering the reaction temperature. CONSTITUTION: The method comprises the steps of reacting lactone compound and thionyl chloride in...
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| creator | CHANG, HAE SUNG KIM, DAE WHANG WOO, JAE CHUN KU, DONG WHAN KO, YOUNG KWAN RYU, JAE WOOK |
| description | PURPOSE: A method for preparing carboxylic chloride compounds whose chloride is substituted from the lactone compound is provided, to improve the production yield with lowering the reaction temperature. CONSTITUTION: The method comprises the steps of reacting lactone compound and thionyl chloride in the presence of a Lewis acid and a quaternary ammonium salt at the atmospheric pressure and at 90-100 deg.C, wherein the addition amounts of the Lewis acid, the quaternary ammonium salt and thionyl chloride are 0.1-20 mol%, 0.1-20 mol% and 1-10 equivalence based on the amount of the lactone compound, respectively. Preferably the lactone compound is represented by the formula 2a or 2b, wherein R1, R2, R3 and R4 are H, a halogen atom, an alkyl group of C1-C4 or a haloalkyl group of C1-C4; R5 is H or an alkyl group of C1-C4; and n is an integer of 1-6. Preferably the Lewis acid is selected from MgCl2, MgBr2, SnCl2, SnCl4, TiCl4, AlCl3, FeCl3, BF3Et2O, BCl3, B(OEt)3, B(OMe)3 and B(O-iPr)3. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_KR100252461BB1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>KR100252461BB1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_KR100252461BB13</originalsourceid><addsrcrecordid>eNrjZLAKCPJ3dg0OVnDzD1IICHINcAzy9HNXcHYMcvKPiPTxdFZwdPZ0UXD28PEP8nRxVXBxDfIMcwzxDHMN5mFgTUvMKU7lhdLcDMpuriHOHrqpBfnxqcUFicmpeakl8d5BhgYGRqZGJmaGTk6GxsSpAgBluSoO</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>PROCESS FOR PREPARING CARBOXYLIC ACID CHLORIDE DERIVATIVES</title><source>esp@cenet</source><creator>CHANG, HAE SUNG ; KIM, DAE WHANG ; WOO, JAE CHUN ; KU, DONG WHAN ; KO, YOUNG KWAN ; RYU, JAE WOOK</creator><creatorcontrib>CHANG, HAE SUNG ; KIM, DAE WHANG ; WOO, JAE CHUN ; KU, DONG WHAN ; KO, YOUNG KWAN ; RYU, JAE WOOK</creatorcontrib><description>PURPOSE: A method for preparing carboxylic chloride compounds whose chloride is substituted from the lactone compound is provided, to improve the production yield with lowering the reaction temperature. CONSTITUTION: The method comprises the steps of reacting lactone compound and thionyl chloride in the presence of a Lewis acid and a quaternary ammonium salt at the atmospheric pressure and at 90-100 deg.C, wherein the addition amounts of the Lewis acid, the quaternary ammonium salt and thionyl chloride are 0.1-20 mol%, 0.1-20 mol% and 1-10 equivalence based on the amount of the lactone compound, respectively. Preferably the lactone compound is represented by the formula 2a or 2b, wherein R1, R2, R3 and R4 are H, a halogen atom, an alkyl group of C1-C4 or a haloalkyl group of C1-C4; R5 is H or an alkyl group of C1-C4; and n is an integer of 1-6. Preferably the Lewis acid is selected from MgCl2, MgBr2, SnCl2, SnCl4, TiCl4, AlCl3, FeCl3, BF3Et2O, BCl3, B(OEt)3, B(OMe)3 and B(O-iPr)3.</description><edition>7</edition><language>eng</language><subject>APPARATUS THEREFOR ; CHEMISTRY ; GENERAL METHODS OF ORGANIC CHEMISTRY ; METALLURGY ; ORGANIC CHEMISTRY</subject><creationdate>2000</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20000415&DB=EPODOC&CC=KR&NR=100252461B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20000415&DB=EPODOC&CC=KR&NR=100252461B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CHANG, HAE SUNG</creatorcontrib><creatorcontrib>KIM, DAE WHANG</creatorcontrib><creatorcontrib>WOO, JAE CHUN</creatorcontrib><creatorcontrib>KU, DONG WHAN</creatorcontrib><creatorcontrib>KO, YOUNG KWAN</creatorcontrib><creatorcontrib>RYU, JAE WOOK</creatorcontrib><title>PROCESS FOR PREPARING CARBOXYLIC ACID CHLORIDE DERIVATIVES</title><description>PURPOSE: A method for preparing carboxylic chloride compounds whose chloride is substituted from the lactone compound is provided, to improve the production yield with lowering the reaction temperature. CONSTITUTION: The method comprises the steps of reacting lactone compound and thionyl chloride in the presence of a Lewis acid and a quaternary ammonium salt at the atmospheric pressure and at 90-100 deg.C, wherein the addition amounts of the Lewis acid, the quaternary ammonium salt and thionyl chloride are 0.1-20 mol%, 0.1-20 mol% and 1-10 equivalence based on the amount of the lactone compound, respectively. Preferably the lactone compound is represented by the formula 2a or 2b, wherein R1, R2, R3 and R4 are H, a halogen atom, an alkyl group of C1-C4 or a haloalkyl group of C1-C4; R5 is H or an alkyl group of C1-C4; and n is an integer of 1-6. Preferably the Lewis acid is selected from MgCl2, MgBr2, SnCl2, SnCl4, TiCl4, AlCl3, FeCl3, BF3Et2O, BCl3, B(OEt)3, B(OMe)3 and B(O-iPr)3.</description><subject>APPARATUS THEREFOR</subject><subject>CHEMISTRY</subject><subject>GENERAL METHODS OF ORGANIC CHEMISTRY</subject><subject>METALLURGY</subject><subject>ORGANIC CHEMISTRY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2000</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLAKCPJ3dg0OVnDzD1IICHINcAzy9HNXcHYMcvKPiPTxdFZwdPZ0UXD28PEP8nRxVXBxDfIMcwzxDHMN5mFgTUvMKU7lhdLcDMpuriHOHrqpBfnxqcUFicmpeakl8d5BhgYGRqZGJmaGTk6GxsSpAgBluSoO</recordid><startdate>20000415</startdate><enddate>20000415</enddate><creator>CHANG, HAE SUNG</creator><creator>KIM, DAE WHANG</creator><creator>WOO, JAE CHUN</creator><creator>KU, DONG WHAN</creator><creator>KO, YOUNG KWAN</creator><creator>RYU, JAE WOOK</creator><scope>EVB</scope></search><sort><creationdate>20000415</creationdate><title>PROCESS FOR PREPARING CARBOXYLIC ACID CHLORIDE DERIVATIVES</title><author>CHANG, HAE SUNG ; KIM, DAE WHANG ; WOO, JAE CHUN ; KU, DONG WHAN ; KO, YOUNG KWAN ; RYU, JAE WOOK</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_KR100252461BB13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2000</creationdate><topic>APPARATUS THEREFOR</topic><topic>CHEMISTRY</topic><topic>GENERAL METHODS OF ORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><topic>ORGANIC CHEMISTRY</topic><toplevel>online_resources</toplevel><creatorcontrib>CHANG, HAE SUNG</creatorcontrib><creatorcontrib>KIM, DAE WHANG</creatorcontrib><creatorcontrib>WOO, JAE CHUN</creatorcontrib><creatorcontrib>KU, DONG WHAN</creatorcontrib><creatorcontrib>KO, YOUNG KWAN</creatorcontrib><creatorcontrib>RYU, JAE WOOK</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>CHANG, HAE SUNG</au><au>KIM, DAE WHANG</au><au>WOO, JAE CHUN</au><au>KU, DONG WHAN</au><au>KO, YOUNG KWAN</au><au>RYU, JAE WOOK</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PROCESS FOR PREPARING CARBOXYLIC ACID CHLORIDE DERIVATIVES</title><date>2000-04-15</date><risdate>2000</risdate><abstract>PURPOSE: A method for preparing carboxylic chloride compounds whose chloride is substituted from the lactone compound is provided, to improve the production yield with lowering the reaction temperature. CONSTITUTION: The method comprises the steps of reacting lactone compound and thionyl chloride in the presence of a Lewis acid and a quaternary ammonium salt at the atmospheric pressure and at 90-100 deg.C, wherein the addition amounts of the Lewis acid, the quaternary ammonium salt and thionyl chloride are 0.1-20 mol%, 0.1-20 mol% and 1-10 equivalence based on the amount of the lactone compound, respectively. Preferably the lactone compound is represented by the formula 2a or 2b, wherein R1, R2, R3 and R4 are H, a halogen atom, an alkyl group of C1-C4 or a haloalkyl group of C1-C4; R5 is H or an alkyl group of C1-C4; and n is an integer of 1-6. Preferably the Lewis acid is selected from MgCl2, MgBr2, SnCl2, SnCl4, TiCl4, AlCl3, FeCl3, BF3Et2O, BCl3, B(OEt)3, B(OMe)3 and B(O-iPr)3.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | APPARATUS THEREFOR CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY |
| title | PROCESS FOR PREPARING CARBOXYLIC ACID CHLORIDE DERIVATIVES |
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