Suzuki Cross-Coupling Reaction of Sterically Hindered Aryl Boronates with 3-Iodo-4-methoxybenzoic Acid Methylester
摘要:
The cross-coupling reaction of 3-iodo-4-methoxybenzoic acid methylester with sterically hindered arylboronic esters and especially 5,5-dimethyl-2-mesityl-1,3,2-dioxaborinane, is reported. The optimisation of the process in order to obtain biaryls in good yield by using anhydrous benzene at reflux and sodium phenoxide in the presence of 0.06 equiv. of Pd(PPh3)(4) is described. (C) 2000 Elsevier Science Ltd. All rights reserved.
(2,6-Dichloro-4-iodophenyl)bis(2,4,6-trichlorophenyl)methane as a precursor in efficient cross-coupling reactions for donor and acceptor functionalized triphenylmethyl radicals
作者:Mona E. Arnold、Alexander J.C. Kuehne
DOI:10.1016/j.dyepig.2022.110863
日期:2022.12
or electronaccepting groups. Iodized HTTM overcomes current limitations in accessibility and yield for TTM radicals functionalized with weaker electron donating groups and electronaccepting groups, enabling the synthesis of virtually any desired TTM radical derivative. The performance of iodized HTTM is demonstrated by the synthesis of new stable radical compounds that are otherwise not or hardly accessible
Suzuki Cross-Coupling Reaction of Sterically Hindered Aryl Boronates with 3-Iodo-4-methoxybenzoic Acid Methylester
作者:H. Chaumeil、S. Signorella、C. Le Drian
DOI:10.1016/s0040-4020(00)00928-5
日期:2000.12
The cross-coupling reaction of 3-iodo-4-methoxybenzoic acid methylester with sterically hindered arylboronic esters and especially 5,5-dimethyl-2-mesityl-1,3,2-dioxaborinane, is reported. The optimisation of the process in order to obtain biaryls in good yield by using anhydrous benzene at reflux and sodium phenoxide in the presence of 0.06 equiv. of Pd(PPh3)(4) is described. (C) 2000 Elsevier Science Ltd. All rights reserved.
Rhodium-Catalyzed Transnitrilation of Aryl Boronic Acids with Dimethylmalononitrile
作者:Christian A. Malapit、Jonathan T. Reeves、Carl A. Busacca、Amy R. Howell、Chris H. Senanayake
DOI:10.1002/anie.201508122
日期:2016.1.4
An efficient transnitrilation of aryl boronic acids with dimethylmalononitrile (DMMN) is described. This rhodium‐catalyzed electrophiliccyanation presents a novel approach to prepare aryl nitriles by using a carbon‐bound cyanating reagent which undergoes cross‐coupling with the aryl boronic acid. The reaction expands the degree of functional‐group compatibility exhibited by the transnitrilation of