Formation of a chiral 1-fluoro-2,2-diphenylcyclopropyl radical in the Barton decarboxylation reaction
摘要:
The chiral 1-fluoro-2,2-diphenylcyclopropyl radical (8), generated in the Barton decarboxylation reaction, was used as a probe to evaluate a variety of halogen and hydrogen atom donating reagents as radical traps.
作者:M. Topolski、M. Duraisamy、J. Rachon、J. Gawronski、K. Gawronska、V. Goedken、H. M. Walborsky
DOI:10.1021/jo00055a004
日期:1993.1
Carbenoids, generated by metalation or halogen-metal exchange reactions, have been prepared from chiral vinyl and cyclopropyl halides. The reactivity and stereochemistry observed in the reaction of these carbenoids has been interpreted as being due to metal-assisted ionization (MAI).
Reaction of chiral cyclopropyl halides with samarium diiodide
作者:H. M. Walborsky、Marek Topolski
DOI:10.1021/jo00027a064
日期:1992.1
Reductions of (S)-(+)-1-bromo-1-methyl-2,2-diphenylcyclopropane (7), (S)-(+)-1-bromo-1-(methoxy-methyl)-2,2-diphenylcyclopropane (19), and (R)-(-)-1-fluoro-1-iodo-2,2-diphenylcyclopropane (11) with samarium(II) iodide is reported. Evidence for a samarium(III) intermediate in the reaction is presented.
GAWRONSKA, K.;GAWRONSKI, J.;WALBORSKY, H. M., J. ORG. CHEM., 56,(1991) N, C. 2193-2197
作者:GAWRONSKA, K.、GAWRONSKI, J.、WALBORSKY, H. M.
DOI:——
日期:——
Formation of a chiral 1-fluoro-2,2-diphenylcyclopropyl radical in the Barton decarboxylation reaction
作者:K. Gawronska、J. Gawronski、H. M. Walborsky
DOI:10.1021/jo00006a042
日期:1991.3
The chiral 1-fluoro-2,2-diphenylcyclopropyl radical (8), generated in the Barton decarboxylation reaction, was used as a probe to evaluate a variety of halogen and hydrogen atom donating reagents as radical traps.