1817-66-9Relevant academic research and scientific papers
Cerium(IV) induced oxidative coupling of simple phenols in the presence and absence of hydrogen peroxide: A comparative study of product distribution
Chakrabarty, Kakoli,Chawla, H. Mohindra,Suresh, Valiya Veettil
, p. 266 - 274 (2007/10/02)
The reaction of cerium(IV) ammonium nitrate with simple phenols (2-, 3- and 4-methylphenols) has been examined in the presence and absence of hydrogen peroxide.It has been observed that though the oxophilicity of cerium(IV) can be controlled by addition of hydrogen peroxide in the reaction medium, there is also a difference in the nature of products formed.The reaction can be used to obtain new terphenyls (3a, 3b and 3e), biphenyls (2a, and 2e), 2-hydroxy-1,9-dimethyl-7-nitro-dibenzyl-p-dioxin (4) and 3,7-dimethyl-1,9-dinitrodibenzofuran (5) in acceptable net yields.
Reaction of cerium(IV) ammonium nitrate with simple phenols in a silica gel matrix
Chakrabarty, K,Chawla, H M,Suresh, V V
, p. 464 - 466 (2007/10/02)
The oxophilicity of cerium(IV) ammonium nitrate is moderated by the addition of hydrogen peroxide.The reaction with simple phenols becomes regioselective when carried out in a silica gel matrix.The methodology has been employed for the synthesis of new functionalized terphenyls and biphenyls.
