CAS: 2051-76-5; Acrylic Anhydride

相似化合物

623-68-7 760-93-0 999-21-3

上下游产品

CAS号79-10-7 丙烯酸 | CAS号814-68-6 丙烯酰氯 | CAS号108-24-7 乙酸酐 | CAS号7446-81-3 丙烯酸钠 | CAS号121-44-8 三乙胺 | CAS号74-86-2 乙炔 | CAS号98-88-4 苯甲酰氯 | CAS号13270-28-5 丙烯酸锂 | CAS号143840-84-0 1-isobutyl-3,4,... | CAS号143818-10-4 1-(2-methylprop... | CAS号439688-76-3 N-(but-1-en-1-y... | CAS号143818-35-3 2(1H)-Pyridinon... | CAS号24599-25-5 丙烯酰基甘氨酸 | CAS号2043-21-2 3-丙烯酰-2-唑酮 | CAS号13188-82-4 (2,2-dimethyl-1... | CAS号79-06-1 丙烯酰胺 | CAS号79-10-7 丙烯酸 | CAS号74-86-2 乙炔

丙烯酸置于氯化亚砜体系中,用 二氯甲烷 用作溶剂,化学反应 2.0H,以55.6%的收率获得丙烯酸酐
参考文献:通过相控制的有机合成3.通过聚合物辅助反应由羧酸制得的对称酸酐.
标题:通过相控制的有机合成3.通过聚合物辅助反应由羧酸制得的对称酸酐.
摘要:通过用4-乙烯基吡啶的固态共聚物处理羧酸和二分之一亚硫酰氯在二氯甲烷中的混合物,可以快速且高收率地生产对称酸酐.在批处理或列模式下,此转换同样可以很好地完成.
Doi:10.1016/s0040-4039(00)85101-1

专利信息

专利号:WO-2023102600-A1
优先权日:2021-12-06
标题:Synthesis of amphiphilic block copolymers and polymeric nanofibers produced therefrom
发明人：ZETTERLUND PER B; ISHIZUKA FUMI; KIM HYUN JIN; CHATANI SHUNSUKE; NIINO HIROSHI
权利人:NEWSOUTH INNOVATIONS PTY LTD
摘要:The present disclosure relates to the field of synthesis of block copolymers, and polymeric nanofibers having a core-shell morphology produced therefrom. The present disclosure relates to the field of synthesis of block copolymers where one block is more hydrophobic than the other block and is a different composition. The disclosure also relates to uses of these polymeric nanofibers in various applications, such as reinforcing a polymeric matrix and for coatings applications.

专利号:US-4857239-A
优先权日:1985-12-24
标 题 :Process for the synthesis of (math)acrylic anhydrides
发明人：HURTEL PATRICE; LAURENT DENIS; RONDINI JOSEPH
权利人:NORSOLOR SA
摘要:The present invention relates to a process for the synthesis of (meth)acrylic anhydride, according to which (meth)acrylic acid is reacted with acetic anhydride in the presence of at least one polymerization inhibitor, in a reactor surmounted by a distillation column. This process is characterized in that the mole ratio of (meth)acrylic acid to acetic anhydride is chosen to be between 2 and 5, in that the reaction is performed in the absence of catalyst, and in that: the acetic acid formed during the reaction is drawn off, and at least one polymerization inhibitor is gradually introduced into the top of the distillation column during the reaction and the distillation enabling the (meth)acrylic anhydride formed to be separated. The (meth)acrylic anhydrides thereby obtained are used, in particular, as reagents in the preparation of (meth)acrylates.

专利号:US-2025101006-A1
优先权日:2022-01-31
标题:Process for the synthesis of pyrazolyl derivatives useful as anti-cancer agents
发明人：BAENZIGER MARKUS; GALLOU FABRICE; GUO FENGFENG; HÄNGGI RUDOLF; HAN ENJIAN; JORDINE GUIDO; LI JIALIANG; LIU WEIPENG; MIAO BUKEYAN; RONG SHAOFENG; SANTANDREA ERNESTO; SCHIRNER PAUL BERND; SHEN XIAODONG; WANG CAN; ZHANG HAO
权利人:NOVARTIS AG
摘要:The invention provides a novel process, novel process steps and novel intermediates useful in the synthesis of pharmaceutically active compounds, especially KRAS G12C inhibitors. The present invention provides a direct enantioselective chemical manufacturing method of making Compound A, or a pharmaceutically acceptable hydrate or solvent thereof: (I). The invention provides a process for preparing Intermediate B6* comprising reacting Intermediate B4* with Intermediate B5* in an atroposelective coupling reaction, using a chiral catalyst.

专利号:US-7825257-B1
优先权日:2007-10-23
标题 :Synthesis of benzotriazole monomer
发明人：DEO KESHAV; SHAH CHANDRAKANT CHUNILAL; PATEL KALPESH; PATEL NILPESH; PAREKH VIRAL; PATEL RONAK; SONI JIGNESH; SHAH HIRAL; SEELYE DAVID E; NANDU MAHENDRA P
权利人:BAUSCH & LOMB
摘要:The synthesis of benzotriazole monomers and the use of the benzotriazole monomers and one or more other monomers to prepare ultraviolet (UV) light absorbing polymer compositions. The synthetic methods described in this application provide a significant improvement over the previous methods used to prepare benzotriazole monomers.

专利号:US-9969670-B2
优先权日:2014-01-20
标题 :Synthesis of (meth) acrylic anhydride by transanhydrization
发明人：ARDAUD PIERRE; VIDAL THIERRY; RACHED RABIH
权利人:RHODIA OPERATIONS
摘要:The invention relates to a method for producing a (meth)acrylic anhydride A-C(â•?O)—O—(Oâ•?)C-A, comprising the following steps: a) a step of reacting an anhydride B—C(â•?O)—O—(Oâ•?)C—B with an acid A-COOH, resulting in the formation of mixed anhydride A-C(â•?O)—O—(Oâ•?)C—B and acid B—COOH; and b) a step of reacting the mixed anhydride with A-COOH, resulting in the (meth)acrylic anhydride. According to the invention, reaction steps (a) and (b) are carried out in the presence of hydrated triflic acid, and the anhydride A-C(â•?O)—O—(Oâ•?)C-A is isolated from the reaction medium produced in step (b) as follows: e1) heavy compounds having a volatility less than or equal to that of the anhydride A-C(â•?O)—O—(Oâ•?)C-A are separated from the reaction medium, said compounds including the anhydride and the hydrated triflic acid; e2) the anhydride is separated from the heavy compounds by diffeence in volatility.

专利号:US-2023357257-A1
优先权日:2020-12-28
标 题 :Novel process for the synthesis of noroxymorphone from morphine
发明人：GORBACHEV DMITRY; LAM HON WAI; SAXENA AAKARSH; SAXENA NAVIN SATYAPAL
权利人:NAVIN SAXENA RESEARCH & TECH PVT LTD
摘要:The present invention relates to a novel, efficient, pot- and atom-economical, and industrially applicable process for converting morphine to noroxymorphone using reagents and solvents of lesser toxicity and lower cost with respect to those used in the prior art.