טכניון מכון טכנולוגי לישראל
הטכניון מכון טכנולוגי לישראל - בית הספר ללימודי מוסמכים  
Ph.D Thesis
Ph.D StudentDobrovetsky Roman
SubjectPreparation, Structure and Reactivity of Functionalized
Silyl Metal Reagents
DepartmentDepartment of Chemistry
Supervisor ? 18? Yitzhak Apeloig
Full Thesis textFull thesis text - English Version


Abstract

Silyl anions are among the most useful reagents in organosilicon synthesis. The majority of complex silicon compounds such as silenes, silylenes, cyclosilanes, are synthesized using silyl anions. Despite the great potential of functional silyl anions in organosilicon chemistry their number is relatively low, furthermore, the knowledge of their structure and reactivity is very limited. Thus, the synthesis, structure and reactivity of new functional silyl anions is crucial for the development of organosilicon synthesis. 

In this thesis we present the synthesis of novel functional silyl anions, substituted by both electropositive function (geminated dimetallosilanes (R3Si)2SiM2, M = Li, Mg, Zn, Hg) and electronegative function ((R3Si)2SiR"M, R" = (CO)Ad, (CO)NMe2, MeN(CO)But, Cl) that mainly were synthesized by: a) the reaction of geminated dimetallosilanes with organic electrophiles; b) by radical reaction between function-substituted silane and R2Hg or R2Zn reagents. In addition, the chemistry of these new compounds and their application in synthesis of new organosilicon compounds is shown.