Navigation

0 Hits

  • Previous / Next

You are using Science Of Synthesis as a Guest.
Please login to access the full content or check if you have access via
4.4.11 Product Subclass 11: Silyllithium Reagents

DOI: 10.1055/sos-SD-004-00265

Singer, R. D.Science of Synthesis, (20024237.

General Introduction

Silyl anions are useful reagents in the preparation of poly- and oligosilanes containing siliconsilicon frameworks. Of particular utility in the preparation of poly- and oligosilanes are oligosilanyl anions and functionalized silyl anions that represent substructures of these larger polymeric compounds. It has long been known that silyl anions undergo smooth addition to a variety of organic electrophiles such as ketones, epoxides, halides, and even α,β-unsaturated carbonyl compounds. Triorganosilyllithium compounds are the most commonly used triorganosilyl alkali metal compounds for the introduction of silyl units into organic compounds. These include the popular triorganosilyl anion containing compounds Me3SiLi, Ph3SiLi, PhnMe3nSiLi, t-BunPh3nSiLi, and iPrnPh3nSiLi. Also well-known are oligosilyl anions such as in (Me3Si)3SiLi, (Me3Si)2MeSiLi, and Me3SiMe2SiLi, the functionalized compounds (Et2N)nPh3nSiLi and (RO)nPh3nSiLi, and other closely related silyl anions that are used in the construction of SiSi bonds.

Meeee eee eeee eeeeeee eeeeeee eeee eeeee eeeeeeeeeeee eeeeeeee eee ee eeeeeeee. Me eeeee eee eeee 8888e, eee eeeeeeee eeeeeeee eeeee ee eeeee eeeeee eeeeeeee eee eeeeeee eeeeeeeeeee ee e eee(eeeeeeeeeeeee)eeeeeee(MM) eeeeeeee eee eeeeeeeeeeee eeeeeeee, eeeeeeee ee eeeeeeeeeeeeeee eeee eeeee eeeeee eeee ee eeeeeee (Meeeeee 8.8.88.8). Meee eeeeee ee eeeeeeeeeeee eeeeeeeeeee eee eeeeeee eeeeeeeeeee eee ee eee eeeeeeee ee eeeeeee. Me ee eeeee-eeeeeeeeeee eeeee (e.e., eeeeee) ee eeeeee ee eee eeeeeee eeee eeee eee eee ee eeeeeee ee eeeeeeeeeee. Me eeee e eeee, eeeeeeeeeeeeee eeeeeeee eee ee eeee eee eee eeeeeeeeee ee eeeeeeeeeeee eeeeeeeee (Meeeeee 8.8.88.8.8). Meee eeeeee eeeeeeee eee eeeeeeee ee eeeeee eeeeeee eeeee eeeeeee eeee e MeMe eeee ee e eeeee, eeeeeee eeeeeee (e.e., eeeeeeeeeeeeeee, eeeeeee eeeee) ee eeeeee eee eeeeeeeeeeee eeeeeeee eee 8 eeeeeeeeee ee eee eeeeeee eeeeee ee e eeeeeeeee. Mee eeeeeeee ee eee eeeeeee eeeeee eeee eee ee eeeeeeeeeee ee eeeeeeeeee eeeeeeeeee eeeeeeeee ee eeee eeeeeeeeeeee. Me eeeee eeeee, eee eeeeeee eeeeee eeeeeeeee eee ee eeeeeee ee e eeeeeee ee eeeee eee eeeeeee eeeeee ee eeeeeeeee ee eeee. Meeeeeeee, eee ee eee eeeee eeeeeee eee eeeeeeeeeeee eeeeeeeeee eee ee eeee. M eeeeeeeee eeeeeeeeeeee eeeeeee eee ee eeeeeeeee eee eeee eeeeee, eeeeeeeeeeeeee eeeeeeee, eeee e 8,8-eeeeeeeeeeeeeeeeeeeeee-8,8-eeeee.[‌8‌‌8‌] Meeeeeeeeeeeee eeeeeeee eee eeee ee eeeeeeeeeeee ee eeee eeeee ee eee eeeeeeee eeeeeee eeeeeeeee(eeeeeeeeeeeeee)eeeeee eee eeeeeeeeeeeee (Meeeeee 8.8.88.8.8). Mee eeeeeeeeee eeeeeeeee eeeee eeee eeeeeee eeeeeee eeeee eee eeeeeeeeeeeee eee eee eeeeeeeeee eeeeeeeeeee ee eeeeeeeeee.

Meeeeeeeeeee eeeeeeee eee eeee ee eeeeeeee ee eee eeeeeeee ee eeeeeeeeee eeee eeeee eeee ee MeMe ee MeMe eeeee. Meeeeeeee eeeeeeee ee eee MeMe eeee eee ee eeee eeeee eeeeeee eeeee (Meeeeee 8.8.88.8.8), eeeeeee eeeeeeeeeeee eeeeeeee ee eeeeee eee MeMe ee eee MeMe eeee eee ee eeeeeeeee ee eeeeeeeeeeeee (Meeeeeee 8.8.88.8.8 eee 8.8.88.8, eeeeeeeeeeee). Mee eeeeeeeee eeeeeee eeeeeeeeeeeeeeeeeeee eeeeeeee ee eee eeee-eeeee M,M,M,M-eeeeeeeeeeeeeeeeeeeeeeeeee eeee ee eeee ee e eeeeeeeee eeeeee eeeee ee ee eeeeeeee eeeee eeeeee ee eee eeeeeee ee eeeee eeeee.

MMMMMM: Meeeeeeeeeee eeeeeeee eee eeee eeeeeeeeeeee eeee eeeeee ee e eeeeeee eeeeeee ee eeeeeeeeeee eeeeeee, eeee ee Meeeeeee eeeeeeee. Mee eeeeeeeeeeee, eeee eeeeeee eeeeeeee eeeeeee eee eeeeee, eeeeeeeee, ee eeeeeee eeeee eeeeeeeee eeeeeeeeee eeeee eeeeeeeeeee. Meeeeeeeeeeeeeeeeeeeeeeee eeeeeeee ee eeeeeeeeeeeeeee eeeeeeee eee eeeeee eee eeeeeeeeeeee eeeeeee ee eeee; eeeeeee, eeee eeeeeeeeeeeeeeeeeeeee eeeeeeee eee eeee eeeeeeee eeeeeeee eeee eeeeeeee eeeeeeee [e.e., 8-(eeeeeeeeeeeeee)eeeee-8-eee] eeee eeeeeeeee eeeeeeee ee eeee eeeeeeeeeee. Meeee eeeeeeeee eeeeee, eeeeeeeee, ee eeeeee ee eeeee eeeeeeeeeeee ee ee eeeeeeeee-eeeee eeeeeeeeeeee.

References


Cookie-Einstellungen