Hexa(amino)disilanes with saturated cyclic amino ligands

Gerald Huber, Hubert Schmidbaur

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Hexakis-(N-aziridino)-, -(N-azetidino)-, -(N-pyrrolidino)-, and -(N-piperidino)-disilane (Si2(N(CH2)n)6, n = 2, 3, 4, and 5) have been prepared from Si2Cl6 and an excess of the corresponding cyclic secondary amine in diethyl ether. For the synthesis of the piperidino compound, N-lithio-piperidine was required as a stronger nucleophile to overcome the increasing steric hindrance with this largest of the four amines. The volatile small ring compounds (n = 2: 1; n = 3: 2) are thermally labile and undergo decomposition upon storage at ambient temperature (mainly through oligomerization via opening of the strained small rings). Compounds 3 (n = 4) and 4 (n = 5) are stable if kept in an inert atmosphere.

Original languageEnglish
Pages (from-to)133-138
Number of pages6
JournalMonatshefte für Chemie
Volume130
Issue number1
DOIs
StatePublished - 1999
Externally publishedYes

Keywords

  • Aminodisilane
  • Azetidino-disilane
  • Aziridino-disilane
  • Disilane
  • Hexa(amino)disilane
  • Piperidino-disilane
  • Pyrrolidino-disilane

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