Steric stabilization of nucleophilic carbenes

Angewandte Chemie (International Edition in English)

Volumn 36, Issue 23, 1997, Pages 2607-2609

  Denk, Michael K ^a   Thadani, Avinash ^a   Hatano, Ken ^a   Lough, Alan J ^a  

^a UNIVERSITY OF TORONTO   (Canada)

Author keywords

Carbenes; Dimerizations; Reductions; Steric hindrance; Thioureas

Indexed keywords

EID: 0031573816     PISSN: 05700833     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.199726071     Document Type: Article

References (52)

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45. Details will be published elsewhere. Different rate laws can be observed in the presence of protic impurities (R. W. Alder, personal communication).
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47. Earlier studies have ruled out the dissociation of olefins 4 into free carbenes: a) D. M. Lemal, R. A. Lovald, K. I. Kawano, J. Am. Chem. Soc. 1964, 86, 2518-2519. b) H. E. Winberg, J. E. Carnahan, D. D. Coffman, M. Brown, ibid. 1965, 87, 2055-2056.
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50. -3. Both structures were solved and refined by using SHELXTL/PC [23]. Crystallographic data (excluding structure factors) for 3d and 4a have been deposited with the Cambridge Crystallographic Data Centre as supplementary publication no. CCDC-100576. Copies of the data can be obtained free of charge on application to the Director, CCDC, 12 Union Road, Cambridge CB2 1EZ, UK (Fax: Int. Code +(1223) 336-033; e-mail: deposit@chemcrys.cam.ac.uk).
51. G. M. Sheldrick, SHELXTL/PC V5.0, Program for Structure Solution and Refinement, Siemens Analytical X-ray Systems Inc. Madison, Wisconsin, USA, 1994.
52. M. Denk, results presented at the 80th Canadian Society for Chemistry Conference, Windsor, Ontario, June 1-4, 1997.