Reductive Activation and Hydrofunctionalization of Olefins by Multiphoton Tandem Photoredox Catalysis
作者:Milena L. Czyz、Mitchell S. Taylor、Tyra H. Horngren、Anastasios Polyzos
DOI:10.1021/acscatal.1c01000
日期:2021.5.7
of olefin feedstocks to architecturally complex alkanes represents an important strategy in the expedient generation of valuable molecules for the chemical and life sciences. Synthetic approaches are reliant on the electrophilicactivation of unactivated olefins, necessitating functionalization with nucleophiles. However, the reductive functionalization of unactivated and less activatedolefins with
Indium trichloride catalyzed reductive Friedel-Crafts alkylation of aromatics using carbonyl compounds
作者:Takashi Miyai、Yoshiyuki Onishi、Akio Baba
DOI:10.1016/s0040-4039(98)01333-1
日期:1998.8
Reductive Friedel-Crafts alkylation of aromatics with aldehydes or ketones using chlorodimethylsilane as a hydride source was effectively promoted by a catalytic amount of indium trichloride, whereas a popular type of Friedel-Crafts catalysts showed less effect.
During the acid-catalysedcyclisation of some o-arylthiophenyl-substituted carbinols to thioxanthen derivatives, arearrangement was observed with carbinols having a para-methyl substituentin thearylthio-group. Thus, 1-[o-(p-tolylthio)phenyl]ethanol gave 3,9-dimethylthioxanthen, while α-[o-(p-tolylthio)phenyl]benzyl alcohol gave a mixture of 3-methyl- and 2-methyl-9-phenylthioxanthen. The mechanism
Aldimine-Directed Branched-Selective Hydroarylation of Styrenes
作者:Pin-Sheng Lee、Naohiko Yoshikai
DOI:10.1002/anie.201207958
日期:2013.1.21
Branching out: A simple and inexpensive cobalt/triarylphosphine catalyst promotes aldimine‐directed hydroarylation of styrene with high branched regioselectivity to afford 1,1‐diarylethane derivatives in good yields under mild reaction conditions. The ortho‐formyl group in the hydroarylation products is amenable to dehydrative cyclization, to give fused polycyclic aromatic hydrocarbons, as well as
Benzylation of benzene and alkylbenzenes at low temperatures
作者:P. Finocchiaro
DOI:10.1016/s0040-4020(01)90726-4
日期:1971.1
Reactivity of benzene and certain alkylbenzenes (toluene, p-xylene, mesitylene) during benzylation with benzylchloride and some derivatives (α-chloroethylbenzene, benzhydrylchloride, chloromethylmesitylene) has been determined under non-isomerizing conditions, in the temperature range −10° and −120°, in ethyl chloride solution with AlCl3 as a catalyst.