A method for purifying O,S-dimethyl N-acetylphosphoramidothioate
A method for purifying O,S-dimethyl N-acetylphosphoramidothioate, which is characterized by subjecting a crude crystal of O,S-dimethyl N-acetylphosphoramidothioate to recrystallization by using a two-phase solvent system comprising water and an organic solvent which is an aromatic hydrocarbon, an al...
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| creator | KIYOSHIMA, YUJIRO IWATA, ATSUKAZU SAKITO, YOJI SHIRAHATA, MAMORU MINAMISAKA, KAZUYA |
| description | A method for purifying O,S-dimethyl N-acetylphosphoramidothioate, which is characterized by subjecting a crude crystal of O,S-dimethyl N-acetylphosphoramidothioate to recrystallization by using a two-phase solvent system comprising water and an organic solvent which is an aromatic hydrocarbon, an aliphatic carboxylic acid ester or aliphatic ketone, wherein the amount of water is 0.1 to 2 parts by weight and the amount of the organic solvent is 1 to 20 parts by weight to 1 part by weight of the crude O,S-dimethyl N-acetylphosphoramidothioate. A further method for purifying O,S-dimethyl N-acetylphosphoramidothioate, which is characterized by extracting O,S-dimethyl N-acetylphosphoramidothioate from an aqueous solution of crude O,S-dimethyl N-acetylphosphoramidothioate with an organic solvent which is a carbonate ester, an aliphatic carboxylic acid ester, an aliphatic ketone, an aliphatic alcohol or a mixture of two or more thereof, wherein the solubility of water in the organic solvent is in a range of from 1 to 20% by weight, and crystallizing O,S-dimethyl N-acetylphosphoramidothioate from the resulting organic phase. |
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A further method for purifying O,S-dimethyl N-acetylphosphoramidothioate, which is characterized by extracting O,S-dimethyl N-acetylphosphoramidothioate from an aqueous solution of crude O,S-dimethyl N-acetylphosphoramidothioate with an organic solvent which is a carbonate ester, an aliphatic carboxylic acid ester, an aliphatic ketone, an aliphatic alcohol or a mixture of two or more thereof, wherein the solubility of water in the organic solvent is in a range of from 1 to 20% by weight, and crystallizing O,S-dimethyl N-acetylphosphoramidothioate from the resulting organic phase.</description><edition>6</edition><language>eng ; fre ; ger</language><subject>ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM ; CHEMISTRY ; METALLURGY ; ORGANIC CHEMISTRY</subject><creationdate>1996</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=19960327&DB=EPODOC&CC=EP&NR=0703238A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19960327&DB=EPODOC&CC=EP&NR=0703238A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KIYOSHIMA, YUJIRO</creatorcontrib><creatorcontrib>IWATA, ATSUKAZU</creatorcontrib><creatorcontrib>SAKITO, YOJI</creatorcontrib><creatorcontrib>SHIRAHATA, MAMORU</creatorcontrib><creatorcontrib>MINAMISAKA, KAZUYA</creatorcontrib><title>A method for purifying O,S-dimethyl N-acetylphosphoramidothioate</title><description>A method for purifying O,S-dimethyl N-acetylphosphoramidothioate, which is characterized by subjecting a crude crystal of O,S-dimethyl N-acetylphosphoramidothioate to recrystallization by using a two-phase solvent system comprising water and an organic solvent which is an aromatic hydrocarbon, an aliphatic carboxylic acid ester or aliphatic ketone, wherein the amount of water is 0.1 to 2 parts by weight and the amount of the organic solvent is 1 to 20 parts by weight to 1 part by weight of the crude O,S-dimethyl N-acetylphosphoramidothioate. A further method for purifying O,S-dimethyl N-acetylphosphoramidothioate, which is characterized by extracting O,S-dimethyl N-acetylphosphoramidothioate from an aqueous solution of crude O,S-dimethyl N-acetylphosphoramidothioate with an organic solvent which is a carbonate ester, an aliphatic carboxylic acid ester, an aliphatic ketone, an aliphatic alcohol or a mixture of two or more thereof, wherein the solubility of water in the organic solvent is in a range of from 1 to 20% by weight, and crystallizing O,S-dimethyl N-acetylphosphoramidothioate from the resulting organic phase.</description><subject>ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM</subject><subject>CHEMISTRY</subject><subject>METALLURGY</subject><subject>ORGANIC CHEMISTRY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1996</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHBwVMhNLcnIT1FIyy9SKCgtykyrzMxLV_DXCdZNyQRJVeYo-OkmJqeWVOYUZOQXA3FRYm5mSn5JRmZ-YkkqDwNrWmJOcSovlOZmUHBzDXH20E0tyI9PLS4A6sxLLYl3DTAwNzA2MrZwNDQmQgkAYFYxBg</recordid><startdate>19960327</startdate><enddate>19960327</enddate><creator>KIYOSHIMA, YUJIRO</creator><creator>IWATA, ATSUKAZU</creator><creator>SAKITO, YOJI</creator><creator>SHIRAHATA, MAMORU</creator><creator>MINAMISAKA, KAZUYA</creator><scope>EVB</scope></search><sort><creationdate>19960327</creationdate><title>A method for purifying O,S-dimethyl N-acetylphosphoramidothioate</title><author>KIYOSHIMA, YUJIRO ; IWATA, ATSUKAZU ; SAKITO, YOJI ; SHIRAHATA, MAMORU ; MINAMISAKA, KAZUYA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP0703238A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>1996</creationdate><topic>ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM</topic><topic>CHEMISTRY</topic><topic>METALLURGY</topic><topic>ORGANIC CHEMISTRY</topic><toplevel>online_resources</toplevel><creatorcontrib>KIYOSHIMA, YUJIRO</creatorcontrib><creatorcontrib>IWATA, ATSUKAZU</creatorcontrib><creatorcontrib>SAKITO, YOJI</creatorcontrib><creatorcontrib>SHIRAHATA, MAMORU</creatorcontrib><creatorcontrib>MINAMISAKA, KAZUYA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KIYOSHIMA, YUJIRO</au><au>IWATA, ATSUKAZU</au><au>SAKITO, YOJI</au><au>SHIRAHATA, MAMORU</au><au>MINAMISAKA, KAZUYA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>A method for purifying O,S-dimethyl N-acetylphosphoramidothioate</title><date>1996-03-27</date><risdate>1996</risdate><abstract>A method for purifying O,S-dimethyl N-acetylphosphoramidothioate, which is characterized by subjecting a crude crystal of O,S-dimethyl N-acetylphosphoramidothioate to recrystallization by using a two-phase solvent system comprising water and an organic solvent which is an aromatic hydrocarbon, an aliphatic carboxylic acid ester or aliphatic ketone, wherein the amount of water is 0.1 to 2 parts by weight and the amount of the organic solvent is 1 to 20 parts by weight to 1 part by weight of the crude O,S-dimethyl N-acetylphosphoramidothioate. A further method for purifying O,S-dimethyl N-acetylphosphoramidothioate, which is characterized by extracting O,S-dimethyl N-acetylphosphoramidothioate from an aqueous solution of crude O,S-dimethyl N-acetylphosphoramidothioate with an organic solvent which is a carbonate ester, an aliphatic carboxylic acid ester, an aliphatic ketone, an aliphatic alcohol or a mixture of two or more thereof, wherein the solubility of water in the organic solvent is in a range of from 1 to 20% by weight, and crystallizing O,S-dimethyl N-acetylphosphoramidothioate from the resulting organic phase.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM CHEMISTRY METALLURGY ORGANIC CHEMISTRY |
| title | A method for purifying O,S-dimethyl N-acetylphosphoramidothioate |
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