A highly enantioselective isocyanide-based multicomponent reaction catalyzed by a chiral N,N′-dioxide/MgII complex was reported. A wide range of substrates were tolerated in this reaction, including alkyl- and aryl-substituted isocyanides with alkylidene malonates and various phenols, affording the corresponding phenoxyimidate products in good to excellent yields (up to 94% yield) with good to excellent
报道了一种由手性N , N ' -二氧化物 / Mg II 配合物催化的高对映选择性异氰化物基多组分反应。在该反应中可以耐受多种底物,包括烷基和芳基取代的异氰化物与亚烷基丙二酸酯和各种酚,以良好至极好的产率(高达 94% 的产率)提供相应的苯氧基亚胺酸酯产物,具有良好至极好的对映选择性(高达到 95.5: 4.5 er)。提出了催化循环和过渡态来合理化反应过程和对映控制。
N-(PHOSPHINOALKYL)-N-(THIOALKYL)AMINE DERIVATIVE, METHOD FOR PRODUCING SAME, AND METAL COMPLEX THEREOF
申请人:TAKASAGO INTERNATIONAL CORPORATION
公开号:US20170233418A1
公开(公告)日:2017-08-17
The purpose of the present invention is to provide: a ligand that is useful in a catalytic organic synthetic reaction; a method for producing said ligand; and a metal complex that is useful as a catalyst in an organic synthetic reaction. The present invention provides a compound represented by general formula (1
A
), a method for producing said compound, and a metal complex including said compound as a ligand. (In the formula, H, N, P, S, L, R
1
, R
2
, R
3
, Q
1
, and Q
2
have the meaning as defined in the Description.)
Efficient One-Pot Synthesis of Unsymmetrical Gold(I) N-Heterocyclic Carbene Complexes and Their Use as Catalysts
作者:A. Stephen K. Hashmi、Yang Yu、Frank Rominger
DOI:10.1021/om2008919
日期:2012.2.13
Eleven different gold(I) complexes of new NHC ligands were prepared in excellent yield, demonstrating the versatility of the new route to NHC complexes. While the influence of electronically different ligands on the synthesis of the catalysts was small, the catalytic activities of the products differed significantly.
Synthesis and evaluation of α-aminoacyl amides as antitubercular agents effective on drug resistant tuberculosis
作者:Vitthal B. Makane、Vagolu Siva Krishna、E. Vamshi Krishna、Manjulika Shukla、B. Mahizhaveni、Sunil Misra、Sidharth Chopra、Dharmarajan Sriram、V.N. Azger Dusthackeer、Haridas B. Rode
DOI:10.1016/j.ejmech.2019.01.002
日期:2019.2
The development of an effective antitubercularagent is a challenge due to the complex nature of tuberculosis. Herein, we report the synthesis and evaluation of α-aminoacyl amides as antitubercularagents. The systematic medicinal chemistry approach led to identification of optimal substitutions required for the activity. Compound 11l was identified as antitubercular lead with drug like properties.
Mononuclear iron complex and organic synthesis reaction using same
申请人:KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
公开号:US10363551B2
公开(公告)日:2019-07-30
A mononuclear iron bivalent complex having iron-silicon bonds, which is represented by formula (1), can exhibit an excellent catalytic activity in at least one reaction selected from three reactions, i.e., a hydrosilylation reaction, a hydrogenation reaction and a reaction for reducing a carbonyl compound.
(In the formula, R1 to R6 independently represent a hydrogen atom, an alkyl group which may be substituted by X, or the like; X represents a halogen atom, or the like; L1 represents at least one two-electron ligand selected from an isonitrile ligand, an amine ligand, an imine ligand, a nitrogenated heterocyclic ring, a phosphine ligand, a phosphite ligand and a sulfide ligand, wherein, when multiple L1's are present, two L1's may be bonded to each other; L2 represents a two-electron ligand that is different from a CO ligand or the above-mentioned L1, wherein, when multiple L2's are present, two L2's may be bonded to each other; and m1 represents an integer of 1 to 4 and m2 represents an integer of 0 to 3, wherein the sum total of m1 and m2 (i.e., m1+m2) satisfies 3 or 4.)