Air/Water-Stable Tridentate NHC-Pd Complex; Catalytic C-H Activation of Hydrocarbons via H/D Exchange Process in D(2)O [0.03%]
稳定的三齿NHC-Pd配合物; 可在D₂O中通过H/D交换过程活化烷烃C-H键催化剂作用下实现
Joo Ho Lee,Kyung Soo Yoo,Chan Pil Park et al.
Joo Ho Lee et al.
While developing novel catalysts for carbon-carbon or carbon-heteroatom coupling (N, O, or F), we were able to introduce tridentate NHC-amidate-alkoxide palladium(II) complexes. In aqueous solution, these NHC-Pd(II) complexes showed high ab...
Homobenzotetramisole-Catalyzed Kinetic Resolution of alpha-Aryl-, alpha-Aryloxy-, and alpha-Arylthioalkanoic Acids [0.03%]
联苯四氨叶立德催化的α-芳基、α-芳氧和α-芳硫代烷酸的动力学拆分
Xing Yang,Vladimir B Birman
Xing Yang
Effective kinetic resolution of alpha-aryl-, alpha-aryloxy-, and alpha-arylthioalkanoic acids has been achieved via in situ generation of their symmetrical anhydrides and enantioselective alcoholysis in the presence of homobenzotetramisole ...
Synthesis of Fluorenes via the Palladium-Catalyzed 5-Exo-dig Annulation of o-Alkynyl Biaryls [0.03%]
钯催化o-烷基联芳基的5-exo环化反应合成荧蒽类化合物
Natalia Chernyak,Vladimir Gevorgyan
Natalia Chernyak
The direct Pd-catalyzed intramolecular rapidly with electron-deficient benzene ring, which, in hydroarylation of o-alkynyl biaryls proceeded in highly combination with a substantial isotope effect observed, stereoselective manner producing ...
Comparison of the Relative Reactivities of the Triisopropylsilyl Group With Two Fluorous Analogs [0.03%]
三异丙基硅基与两种含氟类似物相对反应性的比较研究
Amador Garcia Sancho,Xiao Wang,Bin Sui et al.
Amador Garcia Sancho et al.
The relative stabilities of two fluorous analogs, diisopropyl(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecyl)silyl and diisopropyl-(4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,11-heptadeca-fluoroundecyl)silyl [C(8)F(17)(CH(2))(n)Si(i-Pr)...
Copper(II)-Catalyzed Aminooxygenation and Carboamination of N-Aryl-2-allylanilines [0.03%]
催化N-芳基-2-烯丙基苯胺的氨氧化和碳氢氨化反应
Eric S Sherman,Sherry R Chemler
Eric S Sherman
The scope of the intramolecular copper(II)-catalyzed carboamination and aminooxygenation reactions of olefins has been extended to include N-aryl-2-allylanilines. These substrates exhibit divergent reactivity under catalytic vs. stoichiomet...
Synthesis of 2,3,4-Trisubstituted Thiochromanes using an Organocatalytic Enantioselective Tandem Michael-Henry Reaction [0.03%]
以有机小分子催化烯胺Michael加成-亨rys封端反应串联为关键步骤合成3位取代的硫色满化合物
Rajasekhar Dodda,Joshua J Goldman,Tanmay Mandal et al.
Rajasekhar Dodda et al.
Enantioenriched 2,3,4-trisubstituted thiochromanes have been synthesized by using a cupreine-catalyzed tandem Michael addition-Henry reaction between 2-mercaptobenzaldehydes and β-nitrostyrenes. Good diastereoselectivities and enantioselec...
Studies on the Bisoxazoline and (-)-Sparteine Mediated Enantioselective Addition of Organolithium Reagents to Imines [0.03%]
手性双氧唑啉和(-)-斯巴汀配体在亚胺的对映选择性有机锂试剂加成反应中的应用研究
Scott E Denmark,Noriyuki Nakajima,Cory M Stiff et al.
Scott E Denmark et al.
The enantioselective addition of organolithium reagents to N-anisyl aldimines promoted by chiral bisoxazolines and (-)-sparteine as external ligands is described. This reaction proceeds readily with a wide range of aldimine substrates (alip...
Real-Time Imaging of Protease Action on Substrates Covalently Immobilised to Polymer Supports [0.03%]
共价固定于聚合物载体的底物的蛋白酶作用实时成像技术
Joseph Deere,Gail McConnell,Antonia Lalaouni et al.
Joseph Deere et al.
We report for the first time single bead spatially resolved activity measurements of solid-phase biocatalytic systems followed in real-time. Trypsin cleavage of Bz-Arg-OH and subtilisin cleavage of Z-Gly-Gly-Leu-OH each liberate a free amin...