<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">RofiaMezaache</style></author><author><style face="normal" font="default" size="100%">Harkat, Hassina</style></author><author><style face="normal" font="default" size="100%">Obszynski, Julie</style></author><author><style face="normal" font="default" size="100%">Benkouider, Abdelhamid</style></author><author><style face="normal" font="default" size="100%">Blanc, Aurélien</style></author><author><style face="normal" font="default" size="100%">Weibel, Jean-Marc</style></author><author><style face="normal" font="default" size="100%">Pale, Patrick</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Copper(II) bromide as an efficient catalyst for acetal to bisarylmethyl ether interconversion</style></title><secondary-title><style face="normal" font="default" size="100%">Tetrahedron LettersTetrahedron Letters</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Acetal</style></keyword><keyword><style  face="normal" font="default" size="100%">Alcohol</style></keyword><keyword><style  face="normal" font="default" size="100%">Bis(methoxyphenyl)methyl</style></keyword><keyword><style  face="normal" font="default" size="100%">Copper</style></keyword><keyword><style  face="normal" font="default" size="100%">Protecting group</style></keyword><keyword><style  face="normal" font="default" size="100%">Transprotection</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2014</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2014</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">52</style></number><volume><style face="normal" font="default" size="100%">55</style></volume><pages><style face="normal" font="default" size="100%">7167-7171</style></pages><isbn><style face="normal" font="default" size="100%">0040-4039</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Transprotection of acetals to bis(methoxyphenyl)methyl (BMPM) ethers can be efficiently achieved in the presence of copper dibromide as catalyst in acetonitrile at room temperature. Acetals are conveniently and selectively converted to the corresponding mono-protected diol with bis(methoxyphenyl)methyl isopropyl ether (BMPMOiPr) as the reagent. This new practical reagent allows the BMPM transfer to 1,3-dioxolanes or 1,3-dioxanes under copper catalysis. The reaction conditions are also very mild and tolerant to various functional groups, including other protecting groups.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Specklin, Simon</style></author><author><style face="normal" font="default" size="100%">Gallier, Florian</style></author><author><style face="normal" font="default" size="100%">Mezaache, Roufia</style></author><author><style face="normal" font="default" size="100%">Harkat, Hassina</style></author><author><style face="normal" font="default" size="100%">Yénimégué, Albert</style></author><author><style face="normal" font="default" size="100%">Weibel, Jean-Marc</style></author><author><style face="normal" font="default" size="100%">Blanc, Aurélien</style></author><author><style face="normal" font="default" size="100%">Pale, Patrick</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Copper(II) Bromide as Efficient Catalyst for Silyl- to Bisarylmethyl Ethers Interconversion (Transprotection)</style></title><secondary-title><style face="normal" font="default" size="100%">Tetrahedron LettersTetrahedron Letters</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Alcohol</style></keyword><keyword><style  face="normal" font="default" size="100%">Bis(methoxyphenyl)methyl</style></keyword><keyword><style  face="normal" font="default" size="100%">Copper</style></keyword><keyword><style  face="normal" font="default" size="100%">Protecting group</style></keyword><keyword><style  face="normal" font="default" size="100%">Silyl</style></keyword><keyword><style  face="normal" font="default" size="100%">Transprotection</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">09 2011</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">44</style></number><volume><style face="normal" font="default" size="100%">52</style></volume><pages><style face="normal" font="default" size="100%">5820-5823</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Primary and secondary silylated alcohols are easily converted to bis(methoxyphenyl)methyl (BMPM) ethers in good yields using CuBr2&amp;nbsp;as catalyst in acetonitrile at room temperature. Various other protecting groups are compatible with this mild and convenient process. Graphical abstract Primary and secondary silylated alcohols are easily and rapidly converted to bis(methoxyphenyl)methyl (BMPM) ethers in good yields using CuBr2&amp;nbsp;as catalyst in acetonitrile at room temperature. Various other protecting groups are compatible with this mild and convenient process.</style></abstract></record></records></xml>