strategy to turnover H‐MII‐X complexes has enabled both intra‐ and intermolecular Mizoroki–Heck (MH)‐type reactions of arylcyanides that are challenging to realize under traditional, basic conditions. Initially, a cascade carbonickelation/MH reaction of 2‐cyanostyrenes was achieved using a key alkyne transfer hydrocyanation step. Mechanistic experiments supported the proposed catalytic cycle, including
一种新的转移H-M II - X配合物的转移加氢官能化策略,使芳基氰化物的分子内和分子间Mizoroki-Heck(MH)型反应成为可能,这在传统的基本条件下很难实现。最初,使用关键的炔烃转移氢氰化步骤实现了2-氰基苯乙烯的级联羰基化/ MH反应。机械实验支持了拟议的催化循环,包括促成转移的转移氢氰化步骤。然后将反应性扩展至苄腈和苯乙烯的分子间MH反应。
Efficient Ni-catalyzed conversion of phenols protected with 2,4,6-trichloro-1,3,5-triazine (TCT) to olefins
作者:E. Etemadi-Davan、N. Iranpoor
DOI:10.1039/c7cc06717h
日期:——
One-pot conversion of phenols to the targeted olefins via C–O activation using 2,4,6-trichloro-1,3,5-triazine.
Flash vacuum pyrolysis of 1,6-diphenyl-1,5-hexadien-3-ynes: tandem diaryldienyne cyclizations to form chrysene
作者:Motohiro Sonoda、Kayo Itahashi、Yoshito Tobe
DOI:10.1016/s0040-4039(02)01062-6
日期:2002.7
Flashvacuumpyrolysis of 1,6-diphenyl-1,5-hexadien-3-yne at 1000°C and its bromo derivative at 800°C yielded chrysene as the major product through tandem diaryldienyne cyclizations.
N-Butylpyrrolidinone as a dipolar aprotic solvent for organic synthesis
作者:James Sherwood、Helen L. Parker、Kristof Moonen、Thomas J. Farmer、Andrew J. Hunt
DOI:10.1039/c6gc00932h
日期:——
N-Butylpyrrolidinone (NBP) has been demonstrated as a suitable safer replacement solvent for N-Methylpyrrolidinone (NMP) in selected organic syntheses.
Open-air oxidative Mizoroki–Heck reaction of arylsulfonyl hydrazides with alkenes
作者:On Ying Yuen、Chau Ming So、Fuk Yee Kwong
DOI:10.1039/c6ra03188a
日期:——
A palladium(II)-catalyzed oxidative Mizoroki–Heckreaction of arylsulfonyl hydrazides with alkenes was developed employing atmospheric air as the sole oxidant in an open-vessel manner. By using palladium(II) acetate associating with inexpensive, air-stable and moisture stable pyridine ligand L9 as the catalyst system, the efficiency of the reaction could be significantly enhanced. A wide range of arylsulfonyl