An efficient synthesis of 2,3,5-trisubstituted furans from α,β-unsaturated ketones
作者:Catherine D. Brown、J.Michael Chong、Lixin Shen
DOI:10.1016/s0040-4020(99)00898-4
日期:1999.12
A simple, regioselective synthesis of 2,3,5-trisubstituted furans is described. Conjugate addition of alkynylboronates to α,β-unsaturatedketones, followed by acid-catalyzed cyclization of the resulting γ-alkynyl ketones affords trisubstituted furans in 31–97% overall yields.
A new effective Suzuki-Miyaura coupling reaction between alkynylboronic esters (generated in situ fromacetylenicderivatives) and arylbromides or vinylbromides is reported.
An efficient palladium-catalyzed coupling reaction of lithium alkynyltriisopropoxyborates with acid chlorides: a new access to synthesis of conjugated ynones
作者:Chang Ho Oh、V. Raghava Reddy
DOI:10.1016/j.tetlet.2004.09.114
日期:2004.11
An efficient palladium-catalyzed protocol for the synthesis of ynones from lithium alkynyltriisopropoxyborates with acidchlorides under mild neutral conditions.
在温和的中性条件下,由炔基三异丙氧基硼酸锂与酰氯合成炔酮的有效钯催化方案。
Pt(0)-Catalyzed Alkynylation of Aryl Iodides with Lithium Alkynyltriisopropoxy Borates
作者:Chang Ho Oh、V. Raghava Reddy
DOI:10.1055/s-2004-832819
日期:——
An efficient cross coupling reaction of various lithium alkynyltriiospropoxyborates with a wide array of aryl iodides was catalyzed by Pt(PPh3)4-CuI in DMF as a solvent. These cross coupling reactions are general and permit the new sp-sp2 carbon-carbon bond formation.