ruthenium(II)‐catalyzed deoxygenative transfer hydrogenation of amides to amines using HCO2H/NEt3 as the reducing agent is reported for the first time. The catalyst system consisting of [Ru(2‐methylallyl)2(COD)], 1,1,1‐tris(diphenylphosphinomethyl) ethane (triphos) and Bis(trifluoromethane sulfonimide) (HNTf2) performed well for deoxygenative reduction of various secondary and tertiary amides into the corresponding
首次报道了使用HCO 2 H / NEt 3作为还原剂的钌(II)催化的酰胺脱氧转移胺成胺。催化剂体系由[Ru(2-甲基烯丙基)2(COD)],1,1,1-三(二苯基膦甲基)乙烷(triphos)和双(三氟甲烷磺酰亚胺)(HNTf 2)在将各种仲酰胺和叔酰胺脱氧还原成相应的胺方面表现出色,选择性极好,并且对包括还原敏感基团在内的官能团表现出很高的耐受性。氢源和酸助催化剂的选择对于催化至关重要。机理研究表明,通过借入氢对原位生成的醇和胺进行还原胺化是主要途径。
Boron Lewis Acid Promoted Ruthenium-Catalyzed Hydrogenation of Amides: An Efficient Approach to Secondary Amines
作者:Ming-Lei Yuan、Jian-Hua Xie、Qi-Lin Zhou
DOI:10.1002/cctc.201600635
日期:2016.10.6
The hydrogenation of amides to amines has been developed by using the catalyst [Ru(H)2(CO)(Triphos)] (Triphos=1,1,1‐tri(diphenylphosphinomethyl)ethane) and catalytic boron Lewis acids such as B(C6F5)3 or BF3⋅Et2O as additives. The reaction provides an efficient method for the preparation of secondary amines from amides in good yields with high selectivity.
8-Substituted isoquinoline derivative and the use thereof
申请人:Kaneko Shunsuke
公开号:US20100261701A1
公开(公告)日:2010-10-14
The present invention relates to a compound represented by the following formula (1):
wherein D
1
, A
1
, D
2
, R
1
, D
3
, and R
2
each have the same meaning as defined in the present specification or a salt thereof. The compound represented by the formula (1) or a salt thereof has an IKKβ inhibiting activity and the like and is useful for the prevention and/or treatment of IKKβ-associated diseases or symptoms and the like.
Direct reductivealkylation of amines with carboxylic acid is carried out by using an inexpensive, air‐stable cobalt/triphos catalytic system with molecular hydrogen as the reductant. This efficient synthetic method proceeds through reduction and condensation, followed by reduction of the in situ‐generated imine into the amine in a green catalytic process.
착색제, 수지, 중합성화합물, 중합개시제 및 용제를 포함하는 착색경화성수지조성물로서, 착색제가, 식(I)로 표시되는 화합물을 포함하는 착색경화성수지조성물. (식 중, L은 술포닐기 등을, X는 산소원자 등을 나타내고, R~R은 각각 독립하여 수소원자 등을 나타내고, Z는 식(Z1): (식 중, R은 탄소수1~20의 알킬기를 나타내고, 상기 알킬기를 구성하는 -CH-는 산소원자로 치환되어도 되고, R~R은 각각 독립하여 수소원자 등을, *는 결합손을 나타낸다.) 로 표시되는 기 또는 식(Z2): (식 중, Ar은, 오르토위치, 메타위치 또는 그 양쪽에 탄소수1~8의 알킬기를 가지는 페닐기를 나타내고, *는 결합손을 나타낸다.) 로 표시되는 기를 나타낸다.)