3520-52-3Relevant academic research and scientific papers
Catalytic alkylation of cresols with propanol-1
Tagiev,Agaeva,Nazarova
, p. 1252 - 1255 (2014/02/14)
Study of the reaction of alkylation of ortho-, meta-, and para-cresols with propanol-1 in the presence of ferrite cobalt and manganese catalysts is reported. The effect of the catalyst composition and reaction conditions on the yield and isomeric composit
Ruthenium-catalyzed rearrangement of cis-1-ethynyl-2-vinyloxiranes to substituted phenols
Maddirala, Shambabu Joseph,Odedra, Arjan,Taduri, Bhanu Pratap,Liu, Rai-Shung
, p. 1173 - 1176 (2007/10/03)
Catalytic cyclization of cis-1-ethynyl-2-vinyloxiranes was implemented with TpRuPPh3(CH3CN)2PF6 catalyst (10 mol%), to give 2,6-disubstituted phenols in reasonable yields. Under similar conditions, 1,1,2,2-tetrasubstituted oxirane gave the 2,3,6-trisubstituted phenol with skeleton reorganization. On the basis of 2H- and l3C-labeling results, we propose that the reaction mechanism involves electrocyclization of ruthenium-vinylidene intermediate with cleavage of the carbon-oxygen bond of the epoxide. Georg Thieme Verlag Stuttgart.
A New Rearrangement of Alkoxybenzyl Anions
Bates, Robert B.,Siahaan, Teruna J.,Suvannachut, Kessara
, p. 1328 - 1334 (2007/10/02)
Alkyl groups migrate from oxygen to carbon in alkyl aryl ethers which have been metalated in benzylic positions. 2,6-Dimethylanisole provides a variety of 2,6-dialkylphenols and their ethers in 45-80percent yields.Rearrangement products are obtained in 10-30percent yields from other dimethylanisoles and from methylanisoles.The reactions appear to proceed, like Wittig rearrangements, by homolytic cleavage of the alkyl-oxygen bond followed by recombination of the resulting radical pair in a different way.The rearrangements can be avoided by using methyl ethers and working at or below room temperature.
