Construction of Di(hetero)arylmethanes Through Pd-Catalyzed Direct Dehydroxylative Cross-Coupling of Benzylic Alcohols and Aryl Boronic Acids Mediated by Sulfuryl Fluoride (SO<sub>2</sub>
F<sub>2</sub>
)
作者:Chuang Zhao、Gao-Feng Zha、Wan-Yin Fang、K. P. Rakesh、Hua-Li Qin
DOI:10.1002/ejoc.201801888
日期:2019.2.28
A practical Pd‐catalyzed direct dehydroxylative coupling of (hetero)benzylic alcohols with (hetero)arylboronic acids for the constructions of di(hetero)arylmethane derivatives under SO2F2 was described. This new method provided a strategically distinct approach to di(hetero)arylmethane derivatives from readily available and abundant benzylic alcohols under mild condition.
描述了一种实用的Pd催化的(杂)苄醇与(杂)芳基硼酸的直接脱羟基偶联,用于在SO 2 F 2下构造二(杂)芳基甲烷衍生物。这种新方法在温和的条件下提供了一种战略上独特的方法,用于从易得的和丰富的苄醇中制取二(杂)芳基甲烷衍生物。
Palladium catalyzed Suzuki cross-coupling of benzyltrimethylammonium salts <i>via</i> C–N bond cleavage
A palladiumcatalyzed Suzuki cross-coupling for construction of Csp3–Csp2 bond via Csp3–N bond activation of benzyltrimethyl-ammonium salt is described. This reaction not only offered a highly efficientapproach to diarylmethanes but also paved the way for the application of benzyltrimethylammonium salts in the palladiumcatalyzedcrosscouplingreactions.
Dehydroxylative Arylation of Alcohols via Paired Electrolysis
作者:Zhihui Wang、Xiaoqian Zhao、Hongyu Wang、Xiuyun Li、Zhimin Xu、Velayudham Ramadoss、Lifang Tian、Yahui Wang
DOI:10.1021/acs.orglett.2c03136
日期:2022.10.14
Nonactivated alcohols along with arene compounds are used in electrochemical dehydroxylative arylation for constructing C(sp3)–C(sp2) bonds. The PIII reagent undergoes single-electron anodic oxidation to form its radical cation, which reacts with the alcohol to produce an alkoxytriphenylphosphine radical. Through spontaneous β-scission of the phosphoranyl radical, the C–O bond is cleaved to form an