Search Results - "Wong, Henry N C"

Chiral Hydroxytetraphenylene-Catalyzed Asymmetric Conjugate Addition of Boronic Acids to Enones by Chai, Guo-Li, Sun, A-Qiang, Zhai, Dong, Wang, Juan, Deng, Wei-Qiao, Wong, Henry N. C, Chang, Junbiao

“…(S)-2,15-Br2-DHTP-catalyzed asymmetric conjugate addition of boronic acids to β-trifluoromethyl α,β-unsaturated ketones and enones was studied. The reaction…”
Get full text

Synthesis and Chiroptical Properties of Double-Helical (M)- and (P)‑o‑Oligophenylenes by Chen, Jing-Xing, Han, Jian-Wei, Wong, Henry N. C

“…All of the M and P isomers of optically pure oligophenylenes with 6, 8, 10, and 12 phenyl rings were synthesized and fully characterized. The Suzuki…”
Get full text

Ligand-Free Iron-Catalyzed Carbon (sp2)–Carbon (sp2) Oxidative Homo-Coupling of Alkenyllithiums by Zhong, Zhuliang, Wang, Zhi-Yong, Ni, Shao-Fei, Dang, Li, Lee, Hung Kay, Peng, Xiao-Shui, Wong, Henry N. C

“…A new strategy was developed for the efficient synthesis of di-, tetra-, and hexa-substituted 1,3-butadienes. This one-pot procedure involves lithium–iodine…”
Get full text

Correction to Total Synthesis of (±)-Gracilioether F by Shen, Xin-Yue, Peng, Xiao-Shui, Wong, Henry N. C

Get full text

Synthesis and Photophysical Studies of Chiral Helical Macrocyclic Scaffolds via Coordination-Driven Self-Assembly of 1,8,9,16-Tetraethynyltetraphenylene. Formation of Monometallic Platinum(II) and Dimetallic Platinum(II)−Ruthenium(II) Complexes by Lin, Fang, Peng, Hai-Yan, Chen, Jing-Xing, Chik, David T. W, Cai, Zongwei, Wong, Keith M. C, Yam, Vivian W. W, Wong, Henry N. C

“…This paper is concerned with the synthesis and reactions of enantiopure 1,8,9,16-tetraethynyltetraphenylene (3). We obtained 3 in 34% yield through four steps…”
Get full text

Palladium-Catalyzed Asymmetric (3 + 2) Cycloaddition of Vinyl Epoxides with Substituted Propiolates. Enantioselective Formation of 2,3,4-Trisubstituted 2,3-Dihydrofurans by Wang, Juan, Li, Yun-Fan, Du, Juan, Huang, Shuai, Ding, Chang-Hua, Wong, Henry N. C, Hou, Xue-Long

“…Alkynyl esters are viable dipolarophiles for the palladium-catalyzed asymmetric (3 + 2) cycloaddition with vinyl epoxides. The chiral dihydrofurans are…”
Get full text

Biomimetic Total Synthesis of (±)-Pallavicinolide A by Dong, Jia-Qiang, Wong, Henry N.C

“…Piecing it together: The first total synthesis of naturally occurring diterpene pallavicinolide A was achieved. Notable features are highlighted by three key…”
Get full text

Total Syntheses of (−)-Deoxoapodine, (−)-Kopsifoline D, and (−)-Beninine by Zhou, Yi-Guo, Wong, Henry N. C, Peng, Xiao-Shui

“…The total syntheses of Aspidosperma and Kopsia alkaloids (−)-deoxoapodine, (−)-kopsifoline D, and (−)-beninine are described through a domino…”
Get full text

Chiral Rodlike Platinum Complexes, Double Helical Chains, and Potential Asymmetric Hydrogenation Ligand Based on “Linear” Building Blocks:  1,8,9,16-Tetrahydroxytetraphenylene and 1,8,9,16-Tetrakis(diphenylphosphino)tetraphenylene by Peng, Hai-Yan, Lam, Chi-Keung, Mak, Thomas C. W, Cai, Zongwei, Ma, Wai-Tang, Li, Yu-Xue, Wong, Henry N. C

“…This paper is concerned with the synthesis of 1,8,9,16-tetrahydroxytetraphenylene (3a) via copper(II)-mediated oxidative coupling, its resolution to optical…”
Get full text

Asymmetric Darzens Reaction of Isatins with Diazoacetamides Catalyzed by Chiral BINOL–Titanium Complex by Chai, Guo-Li, Han, Jian-Wei, Wong, Henry N. C

“…An efficient catalytic asymmetric Darzens reaction of N-protected isatins with diazoacetamides using a chiral BINOL/Ti­(O i Pr)4 complex as the catalyst has…”
Get full text

Visible-Light-Driven Difluoromethylation of Isocyanides with S‑(Difluoromethyl)diarylsulfonium Salt: Access to a Wide Variety of Difluoromethylated Phenanthridines and Isoquinolines by Qin, Wen-Bing, Xiong, Wei, Li, Xin, Chen, Jia-Yi, Lin, Li-Ting, Wong, Henry N. C, Liu, Guo-Kai

“…A highly efficient approach of visible-light-driven radical difluoromethylation of isocyanides to access a wide variety of difluoromethylated phenanthridines…”
Get full text

Difluoromethylation of Phenols and Thiophenols with the S‑(Difluo-romethyl)sulfonium Salt: Reaction, Scope, and Mechanistic Study by Liu, Guo-Kai, Qin, Wen-Bing, Li, Xin, Lin, Li-Ting, Wong, Henry N. C

“…A facile and practical approach for the difluoromethylation of phenols and thiophenols was described. Making use of the recently developed bench-stable…”
Get full text

Air- and Light-Stable S‑(Difluoromethyl)sulfonium Salts: C‑Selective Electrophilic Difluoromethylation of β‑Ketoesters and Malonates by Lu, Sheng-Le, Li, Xin, Qin, Wen-Bing, Liu, Jian-Jian, Huang, Yi-Yong, Wong, Henry N. C, Liu, Guo-Kai

“…Air- and light-stable electrophilic difluoromethylating reagents, S-(difluoromethyl)-S-phenyl-S-(2,4,6-trialkoxyphenyl) sulfonium salts were successfully…”
Get full text

PtCl2‑Catalyzed Cycloisomerization of 1,8-Enynes: Synthesis of Tetrahydropyridine Species by Mirzaei, Anvar, Peng, Xiao-Shui, Wong, Henry N. C

“…The cycloisomerization of 1,8-enynes in the presence of platinum­(II) chloride was developed to generate bicyclic nitrogen-containing heterocycle species via…”
Get full text

Iridium-catalyzed enantioselective alkynylation and kinetic resolution of alkyl allylic alcohols by Guo, Jia, Ma, Hao-Ran, Xiong, Wen-Bin, Fan, Luoyi, Zhou, You-Yun, Wong, Henry N. C, Cui, Jian-Fang

“…Herein, we report an efficient kinetic resolution of alkyl allylic alcohols enabled by an iridium-catalyzed enantioselective alkynylation of alkyl allylic…”
Get full text

Sustainable and practical formation of carbon-carbon and carbon-heteroatom bonds employing organo-alkali metal reagents by Huo, Lu-Qiong, Wang, Xin-Hao, Zhang, Zhenguo, Jia, Zhenhua, Peng, Xiao-Shui, Wong, Henry N. C

“…Metal-catalysed cross-coupling reactions are amongst the most widely used methods to directly construct new bonds. In this connection, sustainable and…”
Get full text

Stereospecific Iron-Catalyzed Carbon(sp2)–Carbon(sp3) Cross-Coupling with Alkyllithium and Alkenyl Iodides by Lu, Xiao-Lin, Shannon, Mark, Peng, Xiao-Shui, Wong, Henry N. C

“…An efficient synthetic protocol involving iron-catalyzed cross-coupling reactions between organolithium compounds and alkenyl iodides as key coupling partners…”
Get full text

Ligand-Free Iron-Catalyzed Carbon(sp2)–Carbon(sp2) Cross-Coupling of Alkenyllithium with Vinyl Halides by Liu, Qiang, Wang, Zhi-Yong, Peng, Xiao-Shui, Wong, Henry N. C

“…An efficient ligand-free iron-catalyzed cross-coupling reaction involving alkenyllithium and vinyl iodides was developed to form diene species in moderate to…”
Get full text

Bromine-Mediated Cross-Dehydrogenative Coupling (CDC) Reactions by Wang, Bin, Wong, Henry N C

“…Significant advances in the development of CDC reactions have been made in recent years. However, metal-free CDC reaction remains comparatively…”
Get full text

Iron-catalysed cross-coupling of organolithium compounds with organic halides by Jia, Zhenhua, Liu, Qiang, Peng, Xiao-Shui, Wong, Henry N. C.

“…In past decades, catalytic cross-coupling reactions between organic halides and organometallic reagents to construct carbon–carbon bond have achieved a…”
Get full text