Arylalkane alkene

The formation of arylalkanes, alkenes and alkynes as well of more functionalized derivatives and some bi(hetero)aryls is exemplified in some schemes below, in order to illustrate the contribution of this reaction to green synthesis (Scheme ISa-c). ... 

The oxidative effects of silver(II) complexes of pyridine carboxylates have been studied for a variety of substrates. With ar-amino acids, a rapid reaction occurred at 70 °C in aqueous solution with bis(pyridyl-2-carboxylato)silver(II). 4 The product was the next lower homologous aldehyde and yields were generally greater than 80%. Other substrates included primary and secondary amines, alcohols, monosaccharide derivatives, alkenes, arylalkanes and arylalkanols.90 Only minor differences were detected in efficiencies when 2-, 3- or 4-mono-, or 2,3-di-carboxylates were used as the oxidant. 

The use of DFIT in Et3N 5HF(CH2Cl2) for vzcmaZ-difluorinations of variously functionalized terminal alkenes has recently been demonstrated (Scheme 32) [98]. Although fluorinative rearrangements of arylalkenes to 2,2-difluoro-l-arylalkanes with (difluoroiodo)arenes were documented decades ago [99-101],... 

The reaction of an aromatic ring such as benzene with an alkene under acid conditions results in the formation of an arylalkane (Following fig.). As far as the alkene is concerned this is another example of electrophilic addition involving the addition of a proton to one end of the double bond and the addition of the aromatic ring to the other. As far as the aromatic ring is concerned this is an example of an electrophilic substitution reaction called the Friedel-Cra fts alkylation. 

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