Method For Producing Amides In The Presence Of Superheated Water
申请人:Krull Matthias
公开号:US20110089021A1
公开(公告)日:2011-04-21
The invention relates to a method for producing carboxylic acid amides, according to which at least one carboxylic acid of formula (I)
R
3
—COON (I)
wherein R
3
is hydrogen or an optionally substituted hydrocarbon radical comprising between 1 and 50 carbon atoms, is reacted with at least one amine of formula (II)
HNR
1
R
2
(II)
wherein R
1
and R
2
are independently hydrogen or an optionally substituted hydrocarbon radical comprising between 1 and 100 C atoms, to form an ammonium salt, and said ammonium salt is reacted in the presence of superheated water, under microwave irradiation, to form a carboxylic acid amide.
One‐Step Biocatalytic Synthesis of Sustainable Surfactants by Selective Amide Bond Formation**
作者:Max Lubberink、William Finnigan、Christian Schnepel、Christopher R. Baldwin、Nicholas J. Turner、Sabine L. Flitsch
DOI:10.1002/anie.202205054
日期:2022.7.25
route to commercially important surfactants is presented. A truncated construct of carboxylic acid reductase (CARmm-A) catalyzes amidebondformation between fatty acids and amino alcohols with no esterification observed. The wide substrate scope of the enzyme, co-factor recycling, reaction engineering and up-scaling show the feasibility of this method for synthesis.
提出了一种获得商业上重要的表面活性剂的酶促途径。截短的羧酸还原酶构建体 (CAR mm -A) 催化脂肪酸和氨基醇之间形成酰胺键,未观察到酯化反应。该酶的广泛底物范围、辅因子回收、反应工程和放大显示了该合成方法的可行性。
Process for producing polyolefin
申请人:MITSUI CHEMICALS, INC.
公开号:EP1348719A1
公开(公告)日:2003-10-01
A process for producing a polyolefin according to the present invention comprises (co) polymerizing one or two or more α-olefins in a vapor phase in a fluidized-bed reactor, wherein the concentration of (A) a saturated aliphatic hydrocarbon in the fluidized bed reactor is 1 mol% or more and at least one compound selected from (B) an aliphatic amide and (C) a nonionic surfactant constituted only of carbon, oxygen and hydrogen atoms is made to exist in the reactor. The present invention can provide a process for producing a polyolefin, the process ensuring that the prevention of clogging caused by the generation of sheet or block polymers and a high efficiency of the production of a polyolefin due to good catalytic activity can be accomplished at the same time and also having superb continuous productivity.