- Highly efficient synthesis of primary amides: Via aldoximes rearrangement in water under air atmosphere catalyzed by an ionic ruthenium pincer complex
-
The transformation of aldoximes to primary amides has been evaluated using pincer ruthenium complexes a-c, among which the ionic Ru catalyst a proved to be the most efficient in water under air atmosphere. A variety of (hetero)arene aldoximes proceeded smoothly to afford amides in high yields with good functional group compatibilities. Furthermore, a direct synthetic route of amides from aldehydes, hydroxylamine hydrochloride and sodium carbonate was also described with broad substrates including conjugated and aliphatic aldehydes. This protocol is operationally simple and proceeds with a low catalyst loading (0.5 mol%).
- Yang, Fa-Liu,Zhu, Xinju,Rao, Dun-Kang,Cao, Xiao-Niu,Li, Ke,Xu, Yan,Hao, Xin-Qi,Song, Mao-Ping
-
p. 37093 - 37098
(2016/05/24)
-
- Direct Transformation of Ethylarenes into Primary Aromatic Amides with N -Bromosuccinimide and I2-Aqueous NH3
-
A variety of ethylarenes were converted into the corresponding primary aromatic amides in good yields via treatment with N-bromosuccinimide in the presence of a catalytic amount of 2,2′-azobis(isobutyronitrile) in a mixture of ethyl acetate and water, acetonitrile and water, or chloroform and water, followed by reaction with molecular iodine and aq NH3 in one pot. It was found that aryl α-bromomethyl ketones and/or aryl methyl ketones were formed at the first reaction step and their iodoform-type reaction occurred at the second reaction step to provide primary aromatic amides. The present reaction is a useful and practical transition-metal-free method for the preparation of primary aromatic amides from ethylarenes. (Chemical Equation Presented).
- Shimokawa, Shohei,Kawagoe, Yuhsuke,Moriyama, Katsuhiko,Togo, Hideo
-
supporting information
p. 784 - 787
(2016/03/01)
-
- Et4NI-catalyzed amidation of aldehydes and alcohols with ammonium salts
-
An efficient method for the oxidative amidation of benzylic aldehydes or alcohols with ammonium salts has been developed for the synthesis of primary amides using Et4NI as the catalyst and tert-butyl hydroperoxide as the oxidant. This amidation reaction is operationally straightforward and provides primary amides in moderate to good yields under mild conditions.
- Wang, Gao,Yu, Qing-Ying,Chen, Shan-Yong,Yu, Xiao-Qi
-
p. 414 - 417
(2014/01/06)
-
- COMPOUNDS THAT ARE ERK INHIBITORS
-
Disclosed are the ERK inhibitors of formula 1.0: and the pharmaceutically acceptable salts, and solvates thereof. Q is a tetrahydopyridinyl ring. All other substitutents are as defined herein. Also disclosed are methods of treating cancer using the compounds of formula 1.0.
- -
-
Page/Page column 279
(2009/10/18)
-
- IMIDAZOLOPYRAZINE COMPOUNDS USEFUL FOR THE TREATMENT OF DEGENERATIVE AND INFLAMMATORY DISEASES
-
Novel imidazo[1,2-a]pyrazine compounds are disclosed that have a formula ( I ) represented by the following:The compounds may be prepared as pharmaceutical compositions, and may be used for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, arthritis, inflammation, and others.
- -
-
Page/Page column 63
(2008/06/13)
-
- TRIAZOLOPYRAZINE COMPOUNDS USEFUL FOR THE TREATMENT OF DEGENERATIVE & INFLAMMATORY DISEASES
-
Novel [1.2.4]triazolo[1,5-a]pyrazine compounds are disclosed that have a formula represented by the following (formula I). The compounds may be prepared as pharmaceutical compositions, and may be used for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, arthritis, inflammation, and others.
- -
-
Page/Page column 48
(2008/06/13)
-