Transition Metal Free Stannylation of Alkyl Halides: The Rapid Synthesis of Alkyltrimethylstannanes
作者:Songyi Li、Chang Lian、Guanglu Yue、Jianning Zhang、Di Qiu、Fanyang Mo
DOI:10.1021/acs.joc.1c03135
日期:2022.3.18
A transition metal free stannylation reaction of alkyl bromides and iodides with hexamethyldistannane has been developed. This protocol is operationally convenient and features a rapid reaction and good functional group tolerance. A wide range of functionalized primary and secondary alkyl and benzyl trimethyl stannanes are prepared in moderate to excellent yields. The success of the gram-scale procedure
A number of allylic, allenylic and 2-propynylic (R′) derivatives of tin of the type R3SnR′ have been synthesized, and shown to undergo ready insertion of sulfurdioxide into the SnR′ bond. Rearrangement accompanies insertion so that the products have the alternate allylic, 2-propynylic and allenylic structures respectively. Di-insertion occurs only when groups attached to tin are quite susceptible
Group IVB metalloidal substituent effects by fluorine-19 resonance
作者:Alan J. Smith、William Adcock、William Kitching
DOI:10.1021/ja00724a007
日期:1970.10
Possible effects of substituents of the MR type (M = a group IVB metalloid, R = CH or CH) attached to an aryl system are evaluated and tested by examination of F substituentchemicalshifts (SCS) of appropriate m- and p-fluorophenyl and 4,4′-fluorobiphenyl systems. (The extent to which a substituent electronically perturbs the C–F neighborhood is indicated by the substituentchemicalshift (SCS), which
Direct Stannylation and Silylation of Arylmethanols by Palladium Catalysis
作者:Guanglu Yue、Qianyi Liu、Jingyao Wei、Yanqiong Pi、Di Qiu、Fanyang Mo
DOI:10.1021/acs.joc.2c02265
日期:2023.3.3
affording functionalized benzyl and allylic stannanes and benzylsilanes with high yields. The successful implementation of gram-scale stannylation/silylation as well as the one-pot Stille coupling reaction demonstrates the potential application of this method in organic synthesis. Both experimental and theoretical investigations reveal the mechanistic details of this reaction.