Zobrazeno 1 - 10
of 19
pro vyhledávání: '"J. Richard Premkumar"'
Autor:
Narasinga Rao Palepu, J. Richard Premkumar, Akalesh Kumar Verma, Kaushik Bhattacharjee, S.R. Joshi, Scott Forbes, Yurij Mozharivskyj, Kollipara Mohan Rao
Publikováno v:
Arabian Journal of Chemistry, Vol 11, Iss 5, Pp 714-728 (2018)
Half-sandwich organometallic rhodium and iridium complexes [1–6] have been synthesized with ligands L1 (L1 = Pyridin-2-ylmethylene picolinichydrazine) and L2 (L2 = Pyridin-3-ylmethylene picolinichydrazine). Treatment of [{Cp∗MCl2}2] (M = Rh/Ir) w
Externí odkaz:
https://doaj.org/article/52fc7b40a975493f880f9d06b48ccaaa
Publikováno v:
Journal of Catalysis. 421:309-318
Autor:
Kaushik Bhattacharjee, J. Richard Premkumar, Santa Ram Joshi, Yurij Mozharivskyj, Narasinga Rao Palepu, Scott Forbes, Akalesh K. Verma, Kollipara Mohan Rao
Publikováno v:
Arabian Journal of Chemistry, Vol 11, Iss 5, Pp 714-728 (2018)
Half-sandwich organometallic rhodium and iridium complexes [1–6] have been synthesized with ligands L1 (L1 = Pyridin-2-ylmethylene picolinichydrazine) and L2 (L2 = Pyridin-3-ylmethylene picolinichydrazine). Treatment of [{Cp∗MCl2}2] (M = Rh/Ir) w
Autor:
J. Richard Premkumar, Nimmakuri Rajesh, Balakumar Emayavaramban, Malay Sen, Basker Sundararaju
Publikováno v:
Chemistry - A European Journal. 24:342-346
A general and efficient procedure for C-H alkenylation of arenes with a broad substrate scope catalyzed by Cp*CoIII was demonstrated with alkynes. A highly selective mono-alkenylation and sequential bis-C-H bond functionalization was displayed to exe
Publikováno v:
Organic Letters. 18:4198-4201
An unprecedented C(8)-H bond allylation of quinoline with allyl carbonate and allyl alcohol catalyzed by Cp*Co(III) using a traceless directing group via β-oxygen and β-hydroxy elimination is described. This site-selective allylation reaction proce
Autor:
J. Richard Premkumar, Werner Kaminsky, Kollipara Mohan Rao, Kaushik Bhattacharjee, Yurij Mozharivskyj, Scott Forbes, Akalesh K. Verma, Santa Ram Joshi, Narasinga Rao Palepu
Publikováno v:
Current Inorganic Chemistry. 6:127-140
Publikováno v:
Chemical Communications. 52:1338-1341
An efficient, scalable, atom-economical, regio-selective air stable Cp*Co(iii) catalyzed C-H and C-O coupling via a C-H activation/oxygen atom transfer reaction of quinoline N-oxide and an internal alkyne is reported. Such a catalytic transformation
Autor:
Malay, Sen, Nimmakuri, Rajesh, Balakumar, Emayavaramban, J Richard, Premkumar, Basker, Sundararaju
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany). 24(2)
A general and efficient procedure for C-H alkenylation of arenes with a broad substrate scope catalyzed by Cp*Co
Publikováno v:
Journal of Fluorine Chemistry. 168:193-197
Naphthalene derivatives with laterally orientated short side chains readily form cocrystals with octafluoronaphthalene in which the position and the length of the lateral chain can control the 1:1 and 2:1 cocrystallization stoichiometries and overlap
Publikováno v:
The Journal of Physical Chemistry A. 118:11388-11398
Ab initio computations, up to CCSD(T)/CBS on model systems, and MP2/cc-pVTZ and DFT calculations are performed on cation-alkane and cation-alkene complexes, cation = Li(+), Na(+), Be(2+), Mg(2+), Ca(2+), Cu(+) and Zn(2+); alkane = C(n)H2(n+2) (n = 1-