Nickel-Catalyzed Deoxycyanation of Activated Phenols via Cyanurate Intermediates with Zn(CN)<sub>2</sub>: A Route to Aryl Nitriles
作者:Majid M. Heravi、Farhad Panahi、Nasser Iranpoor
DOI:10.1021/acs.orglett.8b00974
日期:2018.5.4
A novel, and efficient nickel-catalyzed deoxycyanation of phenolic compounds using relatively nontoxic Zn(CN)2 as the cyanide source was developed. The reaction of C–O bond activated phenolic compounds by 2,4,6-trichloro-1,3,5-triazine with Zn(CN)2 in the presence of a nickel precatalyst afforded the aromaticnitriles in good to excellent yields.
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-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