Indanetricarbonylchromium: the effects of 1-syn- and 1-anti substituents on the regioselectivity of nucleophilic addition. Crystal structures of 1-syn- and 1-anti- methoxyindanetricarbonylchromium
indanes have been prepared by thermolysis of Cr(CO)6 or by arene exchange with naphthalene-Cr(CO)3 (3). The regioselectivity of nucleophilic addition of α-nitrile carbon nucleophiles to syn and anti 1-R-indane Cr(CO)3 complexes (R = OMe 4, Me 10) has been investigated and compared with that of analogous reactions with indaneCr(CO)3 (1). The results of an X-ray study of syn- and anti-4 are presented. Nucleophilic
A catalytic amount of a sterically and electronically tuned diarylsulfonamide promoted allylic and benzylic C–H arylations in cooperation with a visible light photoredox catalyst. This is the first example of the catalytic use of a sulfonamidyl radical to promote the hydrogen atom transfer process.