Synthesis of arylboronates by boron-induced ipso-deantimonation of triarylstibanes with boron trihalides and its application in one-pot two-step transmetallation/cross-coupling reactions
The reaction of triarylstibanes (1) with borontrihalides (BCl3, and BBr3) afforded arylboron dihalides (2) by utilizing all the three aryl groups on the antimony. Boron intermediates (2) were transformed to arylboronates (3) in good to excellent yields by treatment with methanol and 1,3-propanediol. Further, the Pd-catalyzed reactions of 2 with organic halides such as 1-bromonaphthalene and benzoyl
Pd-catalyzed C-arylation of unsaturated compounds with pentavalent triarylantimony dicarboxylates
作者:Dmitry V Moiseev、Aleksey V Gushchin、Andrey S Shavirin、Yury A Kursky、Viktor A Dodonov
DOI:10.1016/s0022-328x(02)02179-4
日期:2003.2
Triarylantimony(V) derivatives Ar3SbX2 (X=Hal or acyloxy) were prepared by reaction of Ar3Sb with equimolar amounts of a peroxide ROOH (R=t-Bu, H) in the presence of an acid or an anhydride in good to excellent yields. Ar3Sb(O2CR)2 are mild and efficient C-arylation reagents of unsaturatedcompounds (methyl acrylate, styrene, 2-phenylpropene and acrylonitrile) under palladium catalysis at 50 °C, with
Palladium(II)-catalyzed hydroarylation of α,β-unsaturated aldehydes and ketones with triarylstibines in the presence of silver acetate
作者:Chan Sik Cho、Koichiro Tanabe、Sakae Uemura
DOI:10.1016/0040-4039(94)88042-5
日期:1994.2
Triarylstibines react with α,β-unsaturated aldehydes and ketones in acetic acid at 25°C in the presence of silveracetate and a catalytic amount of palladium(II) acetate to afford the hydroarylation products by conjugate addition in good yields.
Oxidative Cross-Coupling of Boron and Antimony Nucleophiles via Palladium(I)
作者:Quillon Simpson、Matthew J. G. Sinclair、David W. Lupton、Adrian B. Chaplin、Joel F. Hooper
DOI:10.1021/acs.orglett.8b01989
日期:2018.9.21
The use of an isolatable, monomeric Pd(I) complex as a catalyst for the oxidative cross-coupling of aryl-antimony and aryl-boron nucleophiles is reported. This reaction tolerates a wide variety of substrates, with >20:1 selectivity for cross-coupled products. This strategy offers a new approach to achieving the selective cross-coupling of nucleophiles.
Treatment of triarylstibanes with boron trichloride followed by derivatization with methanol and 1,3-propanediol afforded arylboronates in good yield with all three aryl groups on the antimony being utilized. Theoretical calculation of the reaction pathway revealed that the transformation proceeds through boro-induced ipso-deantimonation and the reactivity of Ph3M (M = P, As, Sb, and Bi) should be governed by the stability of the corresponding cations Ar2M+.