457957-24-3Relevant academic research and scientific papers
Cobalt-Catalyzed Markovnikov-Type Selective Hydroboration of Terminal Alkynes
Chen, Jieping,Shen, Xuzhong,Lu, Zhan
supporting information, p. 690 - 694 (2020/11/30)
A cobalt-catalyzed Markovnikov-type hydroboration of terminal alkynes with HBpin to access α-alkenyl boronates with good regioselectivity and atom economy is reported. A new ligand has been developed for the cobalt hydride catalyst that has been used for a unique Markovnikov selective insertion of terminal alkynes into metal hydride bond. This operationally simple protocol exhibits excellent functional group tolerance to deliver valuable alkene derivatives.
Synthesis method of alkenyl boron ester through catalysis of copper
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Paragraph 0096; 0097; 0098, (2019/02/04)
The invention discloses a synthesis method of alkenyl boron ester. The method comprises the following steps: enabling a substrate to carry out olefin dehydroboration esterification reaction with pinacol diborate in a reaction system comprising the substra
Direct Synthesis of Alkenylboronates from Alkenes and Pinacol Diboron via Copper Catalysis
Lu, Wenkui,Shen, Zengming
supporting information, p. 142 - 146 (2019/01/11)
We report an efficient approach for the direct synthesis of alkenylboronates using copper catalysis. The Cu/TEMPO catalyst system (where TEMPO = (2,2,6,6-tetramethylpiperidin-1-yl)oxyl) exhibits both excellent reactivity and selectivity for the synthesis of alkenylboronates, starting from inexpensive and abundant alkenes and pinacol diboron. This approach allows for the direct functionalization of both aromatic and aliphatic terminal alkenes. Mechanistic experiments suggest that the alkenylboronates arise from oxyboration intermediates.
Transition-metal-free PhI(OAc)2-promoted highly selective hydroboration of terminal alkynes under air
Chen, Suyuan,Yang, Lu,Yi, Dong,Fu, Qiang,Zhang, Zhijie,Liang, Wu,Zhang, Qiang,Ji, Jianxin,Wei, Wei
, p. 26070 - 26073 (2017/07/07)
A new transition-metal-free PhI(OAc)2-promoted hydroboration reaction of terminal alkynes with bis(pinacolato)diboron has been developed at room temperature under air. A series of vinyl boronates could be conveniently and efficiently obtained i
Formation of (Z)-allylboronates via ruthenium-catalysed hydroboration of propargyl ethers with pinacolborane
Murata, Miki,Watanabe, Shinji,Masuda, Yuzuru
, p. 142 - 143 (2007/10/03)
Hydroboration of propargyl ethers with pinacolborane in the presence of a catalytic amount of RuHCl(CO)(PPh3)3 involved a carbon-carbon double bond isomerisation to afford γ-alkoxyallylboronate, predominantly in the Z form, in good y
