Literature DB >> 16190702

Autocatalytic alkyne cycloadditions: evidence for colloidal Pt catalysis.

Rowshan Ara Begum1, Nripen Chanda, T V V Ramakrishna, Paul R Sharp.   

Abstract

Treatment of the four-membered platinacycle L2Pt(1,8-naphthalendiyl) (1) or the five-membered platinacycle L2Pt(1,12-triphenylendiyl) with excess PhCCPh at 120-150 degrees C gives the coupling products 1,2-diphenylacenaphthalene or 4,5-diphenylbenzo[e]pyrene and the alkyne complex L2Pt(eta2-PhCCPh). Both reactions show an accelerating rate, which has been traced to catalysis of the reaction by colloidal platinum formed by the reaction of O2 with L2Pt(eta2-PhCCPh).

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Year:  2005        PMID: 16190702     DOI: 10.1021/ja054863+

Source DB:  PubMed          Journal:  J Am Chem Soc        ISSN: 0002-7863            Impact factor:   15.419


  1 in total

1.  Steric Crowding Makes Challenging C(sp3)-F Reductive Eliminations Feasible.

Authors:  Shu-Bin Zhao; Jennifer J Becker; Michel R Gagné
Journal:  Organometallics       Date:  2011-08-08       Impact factor: 3.876

  1 in total

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