The dimesitylenopentylgermene Mes2Ge=CHCH2-t-Bu (3) was synthesized in high yield by an addition-elimination reaction between dimesitylvinylfluorogermane and tert-butyllithium. It is stable at room temperature and is highly reactive toward electrophilic and nucleophilic reagents.
The dimesitylenopentylgermene Mes2Ge=CHCH2-t-Bu (3) was synthesized in high yield by an addition-elimination reaction between dimesitylvinylfluorogermane and tert-butyllithium. It is stable at room temperature and is highly reactive toward electrophilic and nucleophilic reagents.
Addition polymerization of 1,1-dimesitylneopentylgermene: synthesis of a polygermene
作者:Laura C. Pavelka、Simon J. Holder、Kim M. Baines
DOI:10.1039/b801762j
日期:——
A new polymer with an alternating germanium-carbon backbone has been synthesized from 1,1-dimesitylneopentylgermenevia addition polymerization using an anionic initiator.
Addition of Organometallic Reagents to a Stable Silene and Germene
作者:Bahareh Farhadpour、Jiacheng Guo、Laura C. Pavelka、Kim M. Baines
DOI:10.1021/acs.organomet.5b00423
日期:2015.8.10
A variety of alkyllithium (R = Me, Bu, t-Bu) reagents and potassium tert-butoxide were added to the highly reactive silene Mes(2)Si=CHCH(2)t-Bu (1) and the germene Mes(2)Ge=CHCH(2)t-Bu (4) in diethyl ether. 1,2-Addition products were obtained regioselectively and in good yield after treatment with a weak acid with no evidence for any rearrangement products and no polymerization observed. The reactivity of the silene 1 and germene 4 toward organometallic reagents is compared to previous studies of analogous silenes and germenes.
Reactivity of a Germene toward Terminal Alkynes: Competition between Cycloaddition, Ene-Addition, and CH-Insertion
作者:Laura C. Pavelka、Kim M. Baines
DOI:10.1021/om200048p
日期:2011.4.25
A variety of terminal alkynes were added to Mes(2)Ge=CHCH(2)t-Bu, a naturally polarized germene. Three different modes of reactivity we:re observed: cycloaddition to give germacyclobutenes, ene-addition to give vinylgermanes, and addition across the acetylenic C-H bond to give germylacetylenes. Mechanisms for the formation of the products are proposed. The reactivity of the naturally polarized germene toward terminal alkynes is compared to that of the analogous silene,