<?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%">Awasthi, Amardeep</style></author><author><style face="normal" font="default" size="100%">Mukherjee, Anagh</style></author><author><style face="normal" font="default" size="100%">Singh, Mandeep</style></author><author><style face="normal" font="default" size="100%">Rathee, Garima</style></author><author><style face="normal" font="default" size="100%">Vanka, Kumar</style></author><author><style face="normal" font="default" size="100%">Chandra, Ramesh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Highly efficient chemoselective N-tert butoxycarbonylation of aliphatic/aromatic/heterocyclic amines using diphenylglycoluril as organocatalyst</style></title><secondary-title><style face="normal" font="default" size="100%">Tetrahedron</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">DFT studies</style></keyword><keyword><style  face="normal" font="default" size="100%">Diphenylglycouril</style></keyword><keyword><style  face="normal" font="default" size="100%">N-tert butoxycarbonylation</style></keyword><keyword><style  face="normal" font="default" size="100%">organocatalyst</style></keyword><keyword><style  face="normal" font="default" size="100%">Proton shuttle mechanism</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2020</style></year><pub-dates><date><style  face="normal" font="default" size="100%">JUN </style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">76</style></volume><pages><style face="normal" font="default" size="100%">131223</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;An efficient approach for the Chemoselective N-tert-butoxycarbonylation of a variety of amines using diphenylglycoluril as organocatalyst has been described. For the first time, a plausible mechanism for the N-tert-butoxycarbonylation has been proposed using density functional theory (DFT) calculations supported by NMR studies. The reusability of the organocatalyst and observation of the desired N-Boc protected amines being formed without the formation of side products like urea, oxazolidinone, isocyanate, and N, N-di-Boc derivatives makes the present protocol desirable. (C) 2020 Elsevier Ltd. All rights reserved.&lt;/p&gt;
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