The Effect of Nuclear Substituents on the Ionic Reactions of Substituted Styrenes. I. The Reaction of Active Methylene Compounds with o-, m- and p-Nitrostyrene1,2
developed for reactions of malonates with styrene derivatives. The concept of this process lies in the photo-oxidation of catalytic amounts of the enolate to form reactive radicals that react with alkene double bonds under mild reaction conditions. This is an example of visible-light-activated C–C bond formation reactions of malonates with alkenes to realize high atom economy under very mild reaction conditions
The Effect of Nuclear Substituents on the Ionic Reactions of Substituted Styrenes. I. The Reaction of Active Methylene Compounds with o-, m- and p-Nitrostyrene<sup>1,2</sup>
作者:Wesley J. Dale、Charles W. Strobel
DOI:10.1021/ja01652a090
日期:1954.12
Intramolecular Pd-Catalyzed Reductive Amination of Enolizable sp<sup>3</sup>-C–H Bonds
作者:Russell L. Ford、Isabel Alt、Navendu Jana、Tom G. Driver
DOI:10.1021/acs.orglett.9b03458
日期:2019.11.1
A palladium-catalyzed reductive cyclization of nitroarenes has been designed to construct sp3-C–NHAr bonds from sp3-C–H bonds by using an enolizable nucleophile to intercept a nitrosoarene intermediate. Exposure of ortho-substituted nitroarenes to 5 mol % of Pd(OAc)2 and 10 mol % of phenanthroline under 2 atm of CO constructs partially saturated 5-, 6-, or 7-membered N-heterocycles using α-pyridyl