ChemInform Abstract: REACTION OF TRIALKYLSTANNYLACETYLENES WITH TRIALKYLGERMYL HALIDES

Abstract

Zinnacetylenderivate (I) reagieren ohne Lösungsmittel nicht mit Trialkyl‐germylhaIogeniden (II).

Structural Characterization of Hydro‐, Chloro‐ and Fluoroorganylsilanes with Substituents of Varying Electron Withdrawing Character

“…The reaction of lithium reagents 1 a – d with chlorotrimethylsilane in dimethyl ether afforded ( E )‐trimethyl(pentafluoropropen‐1‐yl)silane ( 2 a ), trimethyl(trifluoropropyn‐1‐yl)silane ( 2 b ), trimethyl(pentafluoroethyl)silane ( 2 c ) and trimethyl(trifluorovinyl)silane ( 2 d ). Because of its low boiling point of −24.8 °C [20] dimethyl ether could be easily separated from the silanes (boiling points of 2 a : 94 °C, [21] 2 b : 73–74 °C, [22] 2 c : 69–71 °C, [23] 2 d : 65 °C [10] ) whereas the purification of silanes generated in diethyl ether is sometimes effortful.…”

Functionalized fluoroalkyl and alkenyl silanes: Preparations, reactions, and synthetic applications

“…Deprotonation of trifluoropropyne 345 with methyl magnesium iodide followed by trimethylsilylation with TMSCl is less effective [125]. The synthesis of 346 by stannyl-silyl exchange reaction was also reported [126].…”

Preparation and Functionalization of a Range of Main-Group Trifluoropropynyl Organometallic Compounds: The Application of Metalloid-Directed Carbolithiation to the Selective Synthesis of Novel Fluorocarbon Fragments

“…Where these materials have been explored, work has been largely restricted to organic derivatives, despite the existence of a significant, though small, range of organometallic systems. In particular, it is noted that while a number of silicon and germanium derivatives have been prepared previously (R n E(C⋮CCF 3 ) 4 - n , R = H/D, n = 3; R = Me, n = 1−3; R = Et, n = 3), , their obvious potential as precursors to more functional organo-transfer reagents seems overlooked, few reports having described conversion of the trifluoropropynyl unit to more elaborate functionalities. 11a,d, …”