Staudinger reactions of unsymmetrical cyclic ketenes: a synthetically useful approach to spiro β-lactams and derivatives. Reaction mechanism and theoretical studiesElectronic supplementary information (ESI) available: Spectral data for compounds 4b–4m and 5b–5d and Cartesian coordinates and energies (hartrees) of zwitterionic intermediates (IZ1, IZ2, IZ3, and IZ4) and transition structures (TS1, TS2, TS3 and TS4). See http://www.rsc.org/suppdata/p1/b1/b103279h/

Author(s):  
Eduardo Alonso ◽  
Carlos del Pozo ◽  
Javier González
1976 ◽  
Vol 31 (2) ◽  
pp. 190-193 ◽  
Author(s):  
Werner J. Rühl ◽  
Friedhelm Kober

The reaction of tris-[dimethylamino]-arsine As(NMe2)3 with arsinous acid diolesters HO—RO—AsMe2 leads to the formation of the arsolanes RO2AsY (Y = NMe2, OROAsMe2) and the arsines Me2AsX (X = NMe2, OROAsMe2). The reaction mechanism is discussed; IR and 1H NMR spectral data are presented.


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