non-noble metal-based catalysts are highly preferable due to their unique advantages such as more abundance,inexpensive and low-toxicity.In recent years,chemists made significant contributions towards catalytic valorization of methanol as C1 source to insert methyl groups via C-H activation in a ...
Transition metal/base-catalyzed Aldol reactions of isocyanoacetic acid derivatives with prochiral ketones, a straightforward approach to stereochemically defined β,β-disubstituted- β-hydroxy-α-amino Acids.1 Scope and limitations. V. A. Soloshonok,A. D. Kacharov,D. V. Avilov,K. Ishikawa,N....
Base-Metal Nanoparticle-Catalyzed Hydrogen Release from Ammine Yttrium and Lanthanum Borohydrides 来自 国家科技图书文献中心 喜欢 0 阅读量: 22 作者:Mostajeran,Mehdi,Baker,R.,Tom,Eric,Desgreniers,Serge 摘要: Solid ammine metal borohydrides [M(BH4)(m)(NH3)(n) ...
Ring-opening polymerization reactions of propylene oxide catalyzed by porphyrin metal 3+ complexes of aluminum, chromium and cobalt. In today's world, a major scientific challenge is preserving the delicate balance between industrial growth and a pollutant free terrestrial environment. T... C Chatterje...
The oil transesterification catalysts include usually used acid-base catalyst, solid base, lipase, iodine, metal complex, et al. 油脂酯交换催化剂有:常用酸碱催化剂、酶、固体碱、碘、金属配合物等。 www.chemyq.com 3. The advantage of solid base catalyst and the conditions of dehydration and hydroge...
The dehydrogenation of unactivated alkanes is an important transformation both in industrial and biological systems. Recent efforts towards this reaction have revolved around high temperature, organometallic C–H activation by noble metal catalysts that
摘要: A metal- and base-free synthesis of functionalized α,α-difluoroimines is presented. The reaction features mild conditions, high E/Z control and broad functional group tolerance. The utility of the products was demonstrated through valuable synthetic transformations....
A base- and metal-free three-component reaction of ynones, sodium azide, and alkyl halides is developed for the regioselective synthesis of 2,4,5-trisubstituted-1,2,3-triazoles. The method is general, convenient, environmentally benign, atom-economical, and high-yielding.关键...
Metal- and base-free synthesis of imidazo[1,2-a]pyridines through elemental sulfur-initiated oxidative annulation of 2-aminopyridines and aldehydes 喜欢 0 阅读量: 10 作者:Tan,Jing,Ni,Penghui,Huang,Huawen,Deng,Guo-Jun 摘要: The elemental sulfur-promoted oxidative cyclizatio ...
For selected examples of metal-catalyzed Mannich-type and Mannich reactions, see: (a) Kobayashi, S.; Matsubara, R.; Nakamura, Y.; Kitagawa, H.; Sugiura, M. J. Am. Chem. Soc. 2003, 125, 2507. (b) Trost, B. M.; Terrell, L. R. J. Am. Chem. Soc. 2003, 125, 338. (c) ...