- Boron-Stabilized N,O-Carbenes. Triphenylboron Adducts of Siloxy- and Hydroxyalkyl Isocyanides and Spontaneous Formation of Ate-Ylids
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Triphenylboron adducts of 2- and 3-hydroxyalkyl isocyanides spontaneously undergo intramolekular cyclization to give oxazolidin-2-ylidene and perhydrooxazin-2-ylidene boron complexes, respectively.The same compounds are obtained by methanolysis of the stable species Ph3B-CNCR1R2CR3R4-OSiMe3 (R1, R2, R3, R4 = H, alkyl) (2a - i) and Ph3B-CN(CH2)3-OSiMe3 (2j).IR, 1H NMR, 13C NMR, and mass spectra of the new compounds are reported. - Keywords: Functionalized Isocyanides; Borane Isocyanide Adducts; Reactions at Coordinated Ligands, N,O-Heterocyles, Carbene Complexes
- Fehlhammer, Wolf Peter,Hoffmeister, Hans,Stolzenberg, Heribert,Boyadjiev, Borislav
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p. 419 - 428
(2007/10/02)
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