abs

학술발표회초록보기

초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

현재 가능한 작업은 아래와 같습니다.
  • 08월 18일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제108회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Formation of Trianion species and It’s Transmetalation

등록일
2011년 8월 1일 16시 09분 41초
접수번호
1317
발표코드
Ⅳ-INOR.P-94 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 <발표Ⅳ>
발표형식
포스터
발표분야
무기화학
저자 및
공동저자
송준현, 조현모, 이명의
연세대학교 화학 및 의화학과, Korea

The syntheses and structures of organosilicon lithium compounds have been the subject of much interest. Recently a few dilithiosilyl compounds including their synthetic applications and ab initio calculation, etc. were reported. However, trilithiosilane has not been reported yet. Last ten years we have synthesized stable halosilylenoids and dilithiohalosilanes formed from the reduction of trihalosilanes with strong reducing agents. These results prompted us to investigate a synthesis of trilithiosilanes. The reaction of trihalo[tris(trimethylsilyl)methyl]silane (TsiSiX3, Tsi=C(SiMe3)3, X=Br, Cl) with more than 6 equivalents of lithium naphthalenide (LiNp) in THF at -78℃ gave trilithiosilane together with halodilithiosilane and halolithiosilane which are indirectly monitored by GC/MS after adding excess MeOH into reaction mixture. Transmetalation of lithiosilanes with MgBr2 and their thermal stability were also investigated. In this presentation, synthesis of trilithiosilane and its transmetalation will be discussed in detail.


상단으로