one‐pot synthesis of N‐(hetero)aryl carbamates through the reaction between alcohols and in‐situ produced (hetero)aryl isocyanates in the presence of a nickel catalyst. The phenolic C−O bond was activated via the reaction of phenol with cyanuric chloride (2,4,6‐trichloro‐1,3,5‐triazine (TCT)) as an inexpensive and readily available reagent. This strategy provides practical access to N‐(hetero)aryl carbamates
Nickel-catalyzed cyanation of phenol derivatives activated by 2,4,6-trichloro-1,3,5-triazine
作者:Liang Wang、Yaoyao Wang、Jun Shen、Qun Chen、Ming-Yang He
DOI:10.1039/c8ob01034j
日期:——
A nickel-catalyzed cyanation of phenolderivatives activated by 2,4,6-trichloro-1,3,5-triazine (TCT) using aminoacetonitrile as the cyanating agent is described. This catalytic system delivered the desired products in moderate to good yields with good substrate compatibility. The readily available starting materials, cost-effective nickel catalyst and metal-free cyanating agent are the major features
Nickel-catalysed C O bond reduction of 2,4,6-triaryloxy-1,3,5-triazines in 2-methyltetrahydrofuran
作者:Yaoyao Wang、Jun Shen、Qun Chen、Liang Wang、Mingyang He
DOI:10.1016/j.cclet.2018.09.009
日期:2019.2
Abstract A nickel-catalysedreduction of phenol derivatives activated by 2,4,6-trichloro-1,3,5-triazine (TCT) in ecofriendly 2-methyltetrahydrofuran (2-MeTHF) is described. The phenol-TCT derivatives were readily prepared using grinding method in short time without further purification. This catalytic system allowed the facile C–O cleavage of phenol-TCT derivatives under mild reaction conditions with
Nickel-catalyzed one-pot synthesis of biaryls from phenols and arylboronic acids via C–O activation using TCT reagent
作者:Nasser Iranpoor、Farhad Panahi、Fereshteh Jamedi
DOI:10.1016/j.jorganchem.2015.01.009
日期:2015.4
In this study, the direct Nickel-catalyzed Suzuki–Miyaura coupling reaction of phenols and arylboronicacids via C–O bond activation using 2,4,6-trichloro-1,3,5-triazine (TCT) is described. Initially, phenols were reacted with TCT to give the corresponding 2,4,6-triaryloxy-1,3,5-triazine (TAT) products. Subsequently, arylboronicacid, base and Ni-catalyst were added to the generated aryl C–O electrophile
Nickel-catalyzed reductive amidation of aryl-triazine ethers
作者:Majid M. Heravi、Farhad Panahi、Nasser Iranpoor
DOI:10.1039/c9cc08727c
日期:——
The reaction of activated phenoliccompounds, 2,4,6-triaryloxy-1,3,5-triazine (aryl-triazine ethers), with various isocyanates or carbodiimides in the presence of a nickel pre-catalyst resulted in the synthesis of aryl amides in good to excellent yields.