Homolytic reductive dehalogenation of aryl and alkyl halides by lithium aluminium hydride
作者:Athelstan L. J. Beckwith、Swee Hock Goh
DOI:10.1039/c39830000907
日期:——
Photochemically induced reductions by lithium aluminum hydride of various halogeno-compounds including vinyl bromides, aryl chlorides and fluorides, neophyl chloride, cyclohexyl chloride, and 7,7-dichloronorcarane in the presence of di-t-butyl peroxide afford good yields of dehalogenated products.
Kinetics and mechanism of some vinyl radical cyclisations
作者:Athelstan L.J. Beckwith、Dennis M. O'Shea
DOI:10.1016/s0040-4039(00)84994-1
日期:——
The vinyl radicals 2a, 2b, and 11 each undergo fast exo ring closure to give 5a, 5b, and 12, the first two of which readily rearrange to ring-expanded radicals.
BECKWITH, A. L. J.;GOH, S. H., J. CHEM. SOC. CHEM. COMMUN., 1983, N 16, 907
作者:BECKWITH, A. L. J.、GOH, S. H.
DOI:——
日期:——
Iron-Catalyzed, Hydrogen-Mediated Reductive Cyclization of 1,6-Enynes and Diynes: Evidence for Bis(imino)pyridine Ligand Participation
作者:Kevin T. Sylvester、Paul J. Chirik
DOI:10.1021/ja902478p
日期:2009.7.1
The bis(imino)pyridine iron dinitrogen complex (((i)Pr)PDI)Fe(N(2))(2) catalyzes the hydrogen-mediated reductivecyclization of enynes and diynes with turnover frequencies comparable to those of established precious metal catalysts. Amino, oxygenated, and carbon-based substrates are readily cyclized to the corresponding hetero- and carbocycles with 5 mol % iron and 4 atm H(2) at 23 degrees C. Stoichiometric