CAS: 141-05-9; Diethyl (Z)-2-Butenedioate

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CAS号108-31-6 顺酐 | CAS号64-17-5 乙醇 | CAS号762-42-5 丁炔二酸二甲酯 | CAS号623-73-4 重氮乙酸乙酯 | CAS号292638-84-7 phenylene-ethylene | CAS号98-83-9 α-甲基苯乙烯 | CAS号73331-49-4 [o-((trimethyls... | CAS号608-82-2 diethyl 2,3-dib... | CAS号872-05-9 正癸烯 | CAS号710-43-0 顺式-环丙烷-1,2-二羧酸二乙酯 | CAS号3999-55-1 反式-1,2-环丙烷二甲酸二乙酯 | CAS号3588-17-8 反式,反式-1,3-丁二烯-1... | CAS号4753-29-1 2-(1-硝基乙基)琥珀酸二乙酯 | CAS号33422-35-4 2-(3-氧-2-哌嗪基)乙酸乙酯 | CAS号923-42-2 1,2,4-丁烷三羧酸 | CAS号110-15-6 琥珀酸； 丁二酸 | CAS号924-44-7 乙醛酸乙酯 | CAS号188944-76-5 diethyl 2-bromo... | CAS号192389-48-3 diethyl (2S)-2-...

丁炔二酸二乙酯置于盐酸,Dicarbonylbis(η-Cyclopentadienyl)Titanium(II),水体系中,化学反应生成马来酸二乙酯
参考文献:用水和钛(II)配合物氢化炔烃
标题:用水和钛(II)配合物氢化炔烃
摘要:μ-Oxobis(二环戊二烯基)(链烯基)钛(iv)配合物从制备wee(η 5-C 5 H ^ 5)2的ti(co)2和在水的存在下与炔烃得到相应的顺式烯烃.
Doi:10.1039/c39810000665

专利信息

专利号:WO-2004037772-A1
优先权日:2002-10-22
标 题 :Convenient and scalable synthesis of ethyl n-[(2-boc-amino) ethyl] glycinate and its hydrochloride salt
发明人：HUDSON ROBERT H E; VIIRRE RUSSELL D
权利人:UNIV WESTERN ONTARIO; HUDSON ROBERT H E; VIIRRE RUSSELL D
摘要:The present invention discloses an improved synthesis of ethyl N-[(2-Boc-amino)ethyl]glycinate and its hydrochloride salt. The synthesis is based on the reductive alkylation of Boc-ethylenediamine with ethyl glyoxylate hydrate and furnishes the title compound in near quantitative yield and high purity without chromatography. This compound is suitable, as is, for the synthesis peptide nucleic acid monomers. Further, conversion to the hydrochloride salt provides a stable, non-hygroscopic solid that is a convenient form for handling and storage.

专利号:US-6159673-A
优先权日:1996-07-17
标 题:Oxonol compound, light-sensitive material and process for the synthesis of oxonol compound
发明人：NISHIGAKI JUNJI; DEGUCHI YASUAKI
权利人:FUJI PHOTO FILM CO LTD
摘要:An oxonol compound is represented by the following formula (I): in which Z is an atomic group that forms a cyclic amide ring; each of W1 and W2 independently is an atomic group that forms an acidic nucleus ring; and M is a cation. Other oxonol compounds, a light-sensitive material containing an oxonol compound and a process for the synthesis of an oxonol compound are also disclosed.

专利号:US-2022298136-A1
优先权日:2019-08-21
标题 :Process for synthesis of pyrazolidinone compounds
发明人：MATHUR SUCHET SARAN; JAIN NANDKUMAR JANARDAN; MORE MAHENDRA MAHIPAT
权利人:GHARDA CHEMICALS LTD
摘要:A process for the synthesis of pyrazolidinone, particularly alkyl 2-(3-chloropyridin-2-yl)-5-oxo-pyrazolidine-3-carboxylate (pyrazolidinone) compound, is provided. The process is simple, economical, and produces alkyl 2-(3-chloropyridin-2-yl)-5-oxo-pyrazolidine-3-carboxylate with a comparatively high yields.

专利号:WO-2021033165-A1
优先权日:2019-08-21
标 题:Process for synthesis of pyrazolidinone compounds
发明人：MATHUR SUCHET SARAN; MHATRE HRIDAYNATH VISHWANATH; PEDHAVI VISHAL PARSHURAM
权利人:GHARDA CHEMICALS LTD
摘要:The present disclosure relates to a process for the synthesis of pyrazolidinone, particularly alkyl 2-(3-chloropyridin-2-yl)-5-oxo-pyrazolidine-3-carboxylate (pyrazolidinone) compound. The process of the present disclosure is simple, economical, and produces alkyl 2-(3-5 chloropyridin-2-yl)-5-oxo-pyrazolidine-3-carboxylate with a comparatively high yields.

专利号:WO-2024170663-A1
优先权日:2023-02-15
标 题:Organic reinforcement of an elastomer with the in situ synthesis of a polyimide phase by reactive extrusion
发明人：CASSAGNAU PHILIPPE; DELAGE KARIM; BOUNOR-LEGARE VÉRONIQUE; MARESTIN CATHERINE; DUBOIS CHARLOTTE; GAROIS NICOLAS
权利人:TOTALENERGIES ONETECH; UNIV CLAUDE BERNARD LYON 1 UCBL; CENTRE NAT RECH SCIENT; UNIV JEAN MONNET SAINT ETIENNE; INSTITUT NAT DES SCIENCES APPLIQUEES DE LYON INSA LYON
摘要:The present disclosure relates to a process to produce a reinforced elastomeric material and to the reinforced elastomeric material. The process comprises the steps of providing components comprising a grafted elastomer, one or more dianhydrides, and one or more diamines; wherein the grafted elastomer is provided at a content of at least 60 wt.% based on the total weight of the components; performing in situ synthesis of a polyimide phase in the grafted elastomer by reactive extrusion of the components in a twin-screw extruder comprising main hopper wherein the screw profile comprises two or more reverse conveying elements forming two or more hot zones to form an elastomer-polyimide blend; and recovering said elastomer-polyimide blend being a reinforced elastomeric material.

专利号:US-3798259-A
优先权日:1973-04-09
标题 :Synthesis of ypsilon-ketoesters
发明人：WEHRLI P
权利人:HOFFMANN LA ROCHE
摘要:ALKANOYL PROPIONATES OF THE FORMULA R-CH2-C(=O)-CH2-CH2-C(=O)-O-R'' WHEREIN R AND R'' ARE EACH LOWER ALKYL ARE PREPARED FROM THE CORRESPONDING ALKANOYL SUCCINATES BY TREATMENT WITH BORIC ACID. THESE COMPOUNDS ARE USEFUL IN THE PREPARATION OF 2-ALKYL-CYCLOPENTAN-1,3-DIONES WHICH ARE VALUABLE INTERMEDIATES IN THE SYNTHESIS OF NATURAL PRODUCTS PARTICULARLY STEROIDS.