CAS: 108-31-6; Maleic Anhydride

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二甘醇酐 反应生成马来酸酐
参考文献:The Pyrolysis Of Diglycolic Anhydride
标题:The Pyrolysis Of Diglycolic Anhydride
摘要:
Doi:10.1021/ja01267A078

专利信息

专利号:US-9090560-B2
优先权日:2013-09-04
标 题 :Process for microwave assisted synthesis of N-methyl pyrrolidone
发明人：KHATRI PRAVEEN KUMAR; JAIN SUMAN LATA; CHATERJEE ALOK KUMAR; BIR SAIN
权利人:COUNCIL SCIENT IND RES
摘要:The present invention relates to a process for microwave assisted synthesis of N-methyl pyrrolidone (NMP). Particularly the process relates to the synthesis of N-methyl succinimide or corresponding analogs by using microwave irradiation which on hydrogenation in the presence of a hydrogenating catalyst gives N-methyl pyrrolidone. Compared to the conventional heating microwave process requires less energy inputs and reduces the reaction time drastically from 5-6 h to 2-5 min.

专利号:US-6512081-B1
优先权日:1997-07-21
标题:Synthesis of dithioester chain transfer agents and use of bis(thioacyl) disulfides or dithioesters as chain transfer agents
发明人：RIZZARDO ENZIO; THANG SAN HOA; MOAD GRAEME
权利人:E I DUPONT NEMOURS AND COMPANY; COMMW SCIENT IND RES ORG
摘要:This invention relates to the synthesis of dithiocarboxylic acid esters by reaction of bis(thioacyl) disulphides, thioacetals or vinylidane bis(thioether) with free-radicals (optionally in the presence of monomers). The invention also relates to processes for the synthesis of polymers utilising these dithioesters as polymerisation regulators (chain transfer agents) or to the use of bis(thioacyl) disulphides to generate dithioester chain transfer agents in situ.

专利号:US-2004249114-A1
优先权日:2001-02-06
标题 :Methods of synthesis of polysuccinimide or polyaspartate by end capping polymerization
发明人：SWIFT GRAHAM; REDLICH GEORGE H; WEHBY JOHN NOLAN
摘要:Disclosed are methods of synthesis of homopolymers or copolymers containing succinimide or aspartate moieties formed in the presence of an end capping initiator. Also disclosed are methods of isolating, compounding, stabilizing and processing the homopolymers and copolymers.

专利号:US-5965746-A
优先权日:1997-06-02
标题:Efficient method for the synthesis of N-cyclic maleamic acids and N-cyclic maleimides
发明人：FUJITA SATOSHI; REDDY PAIDI YELLA; TORU TAKESHI
权利人:AISIN SEIKI
摘要:Provided are methods for the synthesis of N-cyclic maleamic acids and N-cyclic maleimide derivatives, as well as N-cyclic maleamic acids and N-cyclic maleimides synthesized thereby. The method for synthesis of an N-cyclic maleamic acid involves reacting an amino group-containing N-cyclic compound with maleic anhydride in acetic acid to obtain an N-cyclic maleamic acid. An N-cyclic maleimide can be formed by adding hexamethyldisilazane to an N-cyclic maleamic acid prepared according to the above-described method, thereby cyclizing a maleamic acid site of the N-cyclic maleamic acid. The described methods allow for the products to be obtained at high yields.

专利号:US-2006211843-A1
优先权日:2001-02-06
标题:Methods of synthesis of poly(succinimide-aspartate) polysuccinimide or polyaspartate by end capping polymerization
发明人：SWIFT GRAHAM; REDLICH GEORGE H
权利人:SWIFT GRAHAM; REDLICH GEORGE H
摘要:Disclosed are methods of synthesis of homopolymers or copolymers containing succinimide or aspartate moieties formed in the presence of an end capping initiator. Also disclosed are methods of isolating, compounding, stabilizing and processing the homopolymers and copolymers.

专利号:US-2012184653-A1
优先权日:2011-01-18
标 题:Synthesis of linear phosphorus-containing functional fluorocopolymer
发明人：WANG LIANG; WANG VIKTORIA
权利人:WANG LIANG; WANG VIKTORIA
摘要:This invention relates to a synthesis of a linear fluorocopolymer having a plurality of pendant phosphorus-containing functional groups. The synthesized phosphorus-containing fluorocopolymer has chain linearity and narrow molecular weight distributions. It has applications as a lubricant additive that provides friction-reduction, anti-wear, and corrosion protection properties.