80120-40-7Relevant academic research and scientific papers
Low pressure Pd-catalyzed carbonylation in an ionic liquid using a multiphase microflow system
Rahman, Md. Taifur,Fukuyama, Takahide,Kamata, Naoya,Sato, Masaaki,Ryu, Ilhyong
, p. 2236 - 2238 (2006)
A low pressure microflow system was developed for palladium-catalyzed multiphase carbonylation reactions in an ionic liquid. The microflow system resulted in superior selectivity and higher yields in carbonylative Sonogashira coupling and amidation reactions of aryl iodides compared to the conventional batch system. The Royal Society of Chemistry 2006.
Pd-Catalyst Containing a Hemilabile P,C-Hybrid Ligand in Amino Dicarbonylation of Aryl Halides for Synthesis of α-Ketoamides
Yang, Shu-Qing,Yao, Yin-Qing,Chen, Xiao-Chao,Lu, Yong,Zhao, Xiao-Li,Liu, Ye
, p. 1032 - 1041 (2021/05/07)
The amino dicarbonylation of aryl halides affording α-ketoamides with Pd catalysts is highly dependent on the stereoelectronic properties of the involved ligands. Ionic diphosphine ligand L4 can serve as precursor of a hemilabile P,C (phosphine, carbene)-hybrid ligand to form a stable Pd(II)-complex, Pd-L4. In contrast, analogues L1-L3 with a similar 1-(thiophen-3-yl)-benzimidazolyl skeleton behave as typical (mono/di)phosphines. The catalytic system resulting from the complexation of PdCl2(MeCN)2 and L4 exhibits good catalytic performance in terms of aryl iodides conversion (81-95%) and α-ketoamide selectivity (80-91%), as well as the available recyclability in the RTIL of [Bpy]BF4. The in situ FT-IR analysis reveals that the PdCl2(MeCN)2-L4 catalytic system favors the amino dicarbonylation toward α-ketoamides according to the proposed mechanism of cycle I, which involves two independent CO-insertion steps.
Visible-light-mediated direct access to α-ketoamides by dealkylative amidation of tertiary amines with benzoylformic acids
Zhang, Zhiguo,Liu, Fangnan,Chen, Jingwen,Zhou, Kai,Bao, Zongbi,Su, Baogen,Yang, Qiwei,Ren, Qilong,Yang, Yiwen
supporting information, (2019/10/02)
A visible-light induced direct amidation of benzoylformic acids with tertiary amines has been explored. Tertiary amines underwent N-dealkylative amidation with α-keto acid in the presence of [Ir{dFCF3ppy}2(bpy)]PF6 and Cs
Versatile Heterogeneous Palladium Catalysts for Diverse Carbonylation Reactions under Atmospheric Carbon Monoxide Pressure
Vico Solano, Marta,González Miera, Greco,Pascanu, Vlad,Inge, A. Ken,Martín-Matute, Belén
, p. 1089 - 1095 (2018/02/06)
Herein, we report a versatile carbonylation protocol using heterogeneous Pd0 nanoparticles supported on the metal–organic frameworks (MOFs) MIL-88B-NH2 (Fe/Cr). The synthesis of a vast array of carbonyls, which includes amides, esters, carboxylic acids, and α-ketoamides, was achieved through mono- and dicarbonylation reactions. The selectivity could be controlled simply by tuning the reaction conditions. Superior activity and selectivity were recorded in some cases compared to that achieved with commercial Pd/C. However, the utility of an elaborate catalyst support is questionable and important reactivity and recyclability issues are discussed.
Water dispersed gold nanoparticles catalyzed aerobic oxidative cross-dehydrogenative coupling: An efficient synthesis of α-ketoamides in water
Thirukovela, Narasimha Swamy,Balaboina, Ramesh,Vadde, Ravinder,Sekhar Vasam, Chandra
supporting information, p. 3749 - 3752 (2018/09/17)
An effective green synthesis of α-ketoamides was developed for the first time in water via gold nanoparticles (AuNPs) catalyzed aerobic oxidative cross-dehydrogenative coupling of secondary amines with phenylglyoxals with a broad substrate scope.
nBu4NI-Mediated oxidation of methyl ketones to α-ketoamides: using ammonium, primary and secondary amine-salt as an amine moiety
Wang, Dan,Zhang, Kuan,Jia, Luhan,Zhang, Danting,Zhang, Yue,Cheng, Yujia,Lin, Chang,Wang, Bo
, p. 3427 - 3434 (2017/04/24)
Presented here is the first example of synthesizing an array of primary-, secondary-, and tertiary-α-ketoamides with a non-metal catalyst nBu4NI from methyl ketones and inexpensive readily available amine/ammonium salts; the reactions proceeded smoothly under mild conditions, TBHP was used as an oxidant and the corresponding α-ketoamides were afforded in moderate to excellent yields.
Transition metal-free synthesis of α-ketoamides from arylmethyl ketones and alkylphosphoramides
Behera, Ahalya,Ali, Wajid,Tripathy, Manisha,Sahoo, Diptimayee,Patel, Bhisma K.
, p. 91308 - 91313 (2016/10/09)
A transition metal-free protocol has been developed for the synthesis of α-ketoamides from aryl methyl ketones and alkylphosphoramides in the presence of oxidant, aqueous tert-butyl hydroperoxide (TBHP). A series of aryl methyl ketones having both electron-donating as well as electron-withdrawing groups were successfully employed for the synthesis of their corresponding α-ketoamides using hexamethylphosphoramide and other alkylphosphoramides.
Room temperature copper-catalyzed oxidative amidation of terminal alkynes for the synthesis of α-ketoamides using: O -benzoyl hydroxylamines as aminating reagent and oxidant
Shen, Guodong,Zhao, Lingyu,Wang, Yichen,Zhang, Tongxin
, p. 78307 - 78310 (2016/09/09)
A novel and convenient copper-catalyzed oxidative amidation for the synthesis of α-ketoamides has been successfully developed, which uses easily available O-benzoyl hydroxylamines as aminating reagent and oxidant. The reaction proceeds smoothly at room temperature and is compatible with a range of substrates to give the desired products in moderate to good yields.
Cu(i)-Functionalized SBA-16: An efficient catalyst for the synthesis of α-ketoamides under moderate conditions
Zhang, Xueyao,Yang, Honglei,Huo, Yong,Li, Jing,Ma, Jianxin,Ma, Jiantai
, p. 8972 - 8983 (2016/06/09)
An efficient catalyst based on the cage-like mesoporous material SBA-16 as the support and Cu(i) as active sites has been successfully prepared. The catalyst demonstrated high catalytic activity (up to 88%) in the direct oxidative synthesis of α-ketoamides between acetophenone and piperidine, employing O2 from open air as the oxidant without other additives. A heterogeneous catalyst was applied in this reaction for the first time, and the catalyst could be easily separated from the reaction system by filtration and reused several times without a significant loss of activity.
Synthesis of α -Ketoamides by Copper-Catalyzed Reactions of Phenylacetic Acids with N,N -Dialkylformamides
Zhang, Lanping,Pu, Junnan,Ren, Jiayu,Li, Zhengkai,Xiang, Haifeng,Zhou, Xiangge
, p. 1848 - 1856 (2015/08/03)
A new synthetic approach for α-ketoamides was achieved by copper-catalyzed coupling reactions between N,N-dialkylformamides and phenylacetic acids. A variety of substrates were well tolerated to give yields of 46-87% (17 examples). A 13C-labeli
