资讯

C&EN20 小时
Amines Bearing Tertiary Substituents by Tandem Enantioselective Carbolithiation ...
In the presence of (−)-sparteine or a (+)-sparteine surrogate, organolithiums add to N-alkenyl-N′-arylureas to give benzylic organolithiums in an enantioselective manner. Under the influence of DMPU, ...
C&EN2 天
Divergent Oxidative Rearrangements in Solution and in a Zeolite: Distal vs Proximal Bond ...
Irradiation of 9,10-dicyanoanthracene (DCA) or p-chloranil in the presence of E-1-benzylidene-2-phenylcyclopropane (E-5) in CH2Cl2 causes E-5 to undergo methylenecyclopropane rearrangement. An adduct, ...