The preparation of N-carboxyanhydrides of α-amino acids using bis(trichloromethyl)carbonate
作者:William H. Daly、Drew Poché
DOI:10.1016/s0040-4039(00)82209-1
日期:1988.1
A synthesis of the N-carboxyanhydrides (NCA's) of several α-aminoacidsusing bis(trichloromethyl) carbonate, 1, is reported. The triphosgene is used to supply phosgene in situ in stoichiometric amounts; it is particularly effective for preparing NCA's of amino acids with long, aliphatic side chains.
Organo-Soluble Chitosan Salts and Chitosan-Derived Biomaterials Prepared Thereof
申请人:Chu Chih-Chang
公开号:US20110150999A1
公开(公告)日:2011-06-23
Organo-soluble chitosan salts, method for preparing organo-soluble salts, chitosan-derived materials prepared with organo-soluble chitosan salts, and methods for preparing chitosan-derived materials are disclosed.
METHOD OF PRODUCING CARBONYL COMPOUND AND FLOW TYPE REACTION SYSTEM OF PRODUCING CARBONYL COMPOUND
申请人:FUJIFILM Corporation
公开号:US20220135517A1
公开(公告)日:2022-05-05
There are provided a method of producing a carbonyl compound by a flow type reaction, including introducing a triphosgene solution, a tertiary amine solution, and an active hydrogen-containing compound solution into flow channels different from each other to cause the respective solutions to flow inside the respective flow channels, joining the respective solutions that flow inside the respective flow channels simultaneously or sequentially so that a reaction between phosgene and an active hydrogen-containing compound occurs, and obtaining a carbonyl compound in a joining solution, in which a non-aqueous organic solvent is used as a solvent of each of the respective solutions and a compound having a cyclic structure is used as the tertiary amine; and a flow type reaction system that is suitable for carrying out this production method.
Process using catalyst comprising soluble polymer and polymino acid
申请人:Roberts Stanley
公开号:US06841689B2
公开(公告)日:2005-01-11
There is provided a process for the addition of a nucleophile across an electron poor carbon-carbon double bond (a Michael addition) comprising contacting in a solvent: i) a nucleophile; ii) a compound comprising an electron poor double bond; and iii) a catalyst comprising a soluble polymer and a polyamino acid.
METHOD FOR PRODUCING CARBONYL COMPOUND AND FLOW REACTION SYSTEM USED FOR PRODUCTION OF CARBONYL COMPOUND
申请人:FUJIFILM Corporation
公开号:EP4019493A1
公开(公告)日:2022-06-29
There are provided a method of producing a carbonyl compound by a flow type reaction, including introducing a triphosgene solution into a flow channel (I), bringing the triphosgene solution into contact with a solid catalyst immobilized in at least a part of the flow channel (I) to generate a phosgene solution while the triphosgene solution is flowing through the flow channel (I), joining the phosgene solution and an active hydrogen-containing compound solution that flows inside the flow channel (II), which are subsequently allowed to flow downstream inside a reaction flow channel to be reacted in a presence of a tertiary amine, and obtaining a carbonyl compound in a joining solution; and a flow type reaction system that is suitable for carrying out this production method.
提供了一种通过流动型反应生产羰基化合物的方法,包括将三光气溶液引入流动通道(I),在三光气溶液流经流动通道(I)时,使三光气溶液与固定在流动通道(I)至少一部分中的固体催化剂接触,生成光气溶液、将光气溶液与流道 (II) 内的活性含氢化合物溶液汇合,然后让它们顺流进入反应流道,在叔胺存在下进行反应,并在汇合溶液中获得羰基化合物;以及适用于该生产方法的流动式反应系统。