Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 134, Issue 6, Pages 2954-2957Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja212065a
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Funding
- Ministry of Education, Science, Sports, and Culture of Japan [19105001, 21350023, 23108701, 23655027]
- JSPS
- Grants-in-Aid for Scientific Research [21350023, 24109006, 10J04661, 23655027, 19105001] Funding Source: KAKEN
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The reaction of 1,1,4,4-tetrakis[bis(trimethylsilyl)methyl] -1,4-diisopropyltetrasila-2-yne (1) with tert-butylisocyanide or tert-octylisocyanide produced the corresponding disilyne-isocyanide adducts [RSiSiR-(CNR')(2)] (R = (SiPr)-Pr-i[CH(SiMe3)(2)](2), R' = Bu-t (2a) or (CMe2CH2Bu)-Bu-t (2b)), which are stable below -30 degrees C and were characterized by spectroscopic data and, in the case of 2a, X-ray crystallography. Upon warming to room temperature, 2 underwent thermal decomposition to produce 1,2-dicyanodisilene R(NC)Si=Si(CN)R (3) and 1,2-dicyanodisilane R(NC)HSiSiH(CN)R (4) via C-N bond cleavage and elimination of an alkane and an alkene. The 1,2-dicyanodisilene derivative 3 was characterized by X-ray crystallography.
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