01576nas a2200253   4500008004100000022001400041245023400055210006900289260010600358300001200464490000700476520049600483653001300979653001000992653002101002653003201023653000901055100003101064700002201095700002701117700002501144700002401169856012901193       2013                        eng d  a0040-403900aSolvent-free, highly efficient one-pot multi-component synthesis of 1-amido- and 1-carbamato-alkyl naphthols/phenols catalyzed by ethylammonium nitrate as reusable ionic liquid under neat reaction condition at ambient temperature0 aSolventfree highly efficient onepot multicomponent synthesis of   aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcFEB  a672-6750 v543 a<p>A solvent-free, environmentally clean, mild, and simple one-pot multi-component protocol has been developed for the efficient synthesis of 1-amido- and 1-carbamato-alkyl naphthols/phenols in excellent yields via one-pot three-component condensation of various aldehydes, amides/carbamates/urea, and naphthols/phenols using ethylammonium nitrate (EAN) as a reusable ionic liquid catalyst under neat reaction condition at ambient temperature. (c) 2012 Elsevier Ltd. All rights reserved.</p>10aAldehyde10aamide10aCarbamate Phenol10aEthylammonium nitrate (EAN)10aUrea1 aMulla, Shafeek, Abdul Rash1 aSalama, Tarek, A.1 aPathan, Mohsinkhan, Y.1 aInamdar, Suleman, M.1 aChavan, Santosh, S.  uhttps://library.ncl.res.in/content/solvent-free-highly-efficient-one-pot-multi-component-synthesis-1-amido-and-1-carbamato-001649nas a2200157   4500008004100000245015400041210007000195260000800265300001400273490000700287520098800294100002101282700002501303700003101328856013201359       2017                        eng d00aSynthesis of annulated bis-indoles through Au(I)/brønsted acid-catalyzed reactions of (1H-indol-3-yl)(aryl)methanols with 2-(arylethynyl)-1H-indoles0 aSynthesis of annulated bisindoles through AuIbrønsted acidcataly  cDEC  a863 - 8690 v153 aA general method to access annulated bis-indoles from (1H-indol-3-yl)(aryl)methanols and 2-(arylethynyl)-1H-indoles under the catalysis of the Ph3PAuOTf/Brønsted acid binary catalyst system has been developed. The reaction was found to proceed in a highly efficient manner and benefit from easy-to-make starting materials, broad substrate scope and operational simplicity. The potential of this method has also been exemplified for the synthesis of pyrrole-annulated indoles using 2-(phenylethynyl)-1H-indoles and phenyl(1H-pyrrol-2-yl)methanols. Furthermore, the use of a ternary catalyst system, involving PdCl2/Brønsted acid/Ph3PAuOTf catalysts, has been realized for the synthesis of annulated bis-indoles starting directly from 2-(phenylbuta-1,3-diyn-1-yl)aniline and (1H-indol-3-yl)(aryl)methanol. Mechanistically, this reaction is very interesting since the overall process involves three different catalytic cycles catalyzed by three different catalysts in a relay fashion.1 aPatil, Nitin, T.1 aInamdar, Suleman, M.1 aGonnade, Rajesh, Ghanshyam  uhttps://library.ncl.res.in/content/synthesis-annulated-bis-indoles-through-auibr%C3%B8nsted-acid-catalyzed-reactions-1h-indol-3