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• W2131577792 endingPage "150" @default.
• W2131577792 startingPage "144" @default.
• W2131577792 abstract "A series of new titanium and zirconium amido complexes, incorporating 4,5-diphenyl-2-(2-pyridinyl)-1H-imidazole (HL1), 4,5-bis(4-chlorophenyl)-2-(2-pyridinyl)-1H-imidazole (HL2), 4,5-bis(4-methoxyphenyl)-2-(2-pyridinyl)-1H-imidazole (HL3) and 4,5-bis(2-methoxyphenyl)-2-(2-pyridinyl)-1H-imidazole) (HL4) as the ancillary ligands, have been prepared and are shown to be pre-catalysts for the hydroamination of alkynes. Treatment of Ti(NMe2)4 with 1 equivalent of HL1, HL2, HL3 and HL4, respectively, results in transamination with one dimethylamide group providing Ti(L1)(NMe2)3 (1), Ti(L2)(NMe2)3 (2), Ti(L3)(NMe2)3 (3), and Ti(L4)(NMe2)3·THF (4·THF). Reaction of Ti(NMe2)4 with 2 equivalents of HL1, HL2, HL3 and HL4, respectively, leads to production of titanium bisamido complexes Ti(L1)2(NMe2)2·THF (5·THF), Ti(L2)2(NMe2)2·THF (6·THF), Ti(L3)2(NMe2)2·THF (7·THF), and Ti(L4)2(NMe2)2 (8). Similarly, complexes Zr(L1)(NMe2)3 (9), Zr(L1)2(NMe2)2·1.5THF (10·1.5THF), Zr(L2)2(NMe2)2·0.5THF (11·0.5THF), and Zr(L3)2(NMe2)2·0.5THF (12·0.5THF) are generated by addition of 1 or 2 equivalents of the corresponding ligands to Zr(NMe2)4. All compounds have been characterized by elemental and spectroscopic analyses. The solid-state structures of compounds 2 and 6·THF have been further established by single X-ray diffraction analyses. The catalytic activities of 2 and 6·THF towards the hydroamination of alkynes were explored. Complexes 2 and 6·THF were found to be active pre-catalysts for the hydroamination reactions. Complex 2 showed higher catalytic activity and gave highly Markovnikov selective hydroamination of terminal alkynes." @default.
• W2131577792 created "2016-06-24" @default.
• W2131577792 creator A5008389503 @default.
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• W2131577792 date "2012-01-01" @default.
• W2131577792 modified "2023-10-09" @default.
• W2131577792 title "Titanium and zirconium amido complexes supported by imidazole-containing ligands: syntheses, characterization and catalytic activities" @default.
• W2131577792 cites W1966513519 @default.
• W2131577792 cites W1966555988 @default.
• W2131577792 cites W1967349434 @default.
• W2131577792 cites W1971425837 @default.
• W2131577792 cites W1972681887 @default.
• W2131577792 cites W1974274107 @default.
• W2131577792 cites W1983702852 @default.
• W2131577792 cites W1993679883 @default.
• W2131577792 cites W2001920359 @default.
• W2131577792 cites W2004243354 @default.
• W2131577792 cites W2004433174 @default.
• W2131577792 cites W2010908392 @default.
• W2131577792 cites W2012052243 @default.
• W2131577792 cites W2019053611 @default.
• W2131577792 cites W2020856752 @default.
• W2131577792 cites W2021890642 @default.
• W2131577792 cites W2022496154 @default.
• W2131577792 cites W2029099223 @default.
• W2131577792 cites W2033236285 @default.
• W2131577792 cites W2033962967 @default.
• W2131577792 cites W2034692611 @default.
• W2131577792 cites W2038696941 @default.
• W2131577792 cites W2039373897 @default.
• W2131577792 cites W2040531083 @default.
• W2131577792 cites W2041001820 @default.
• W2131577792 cites W2042947097 @default.
• W2131577792 cites W2043722296 @default.
• W2131577792 cites W2045451588 @default.
• W2131577792 cites W2046972383 @default.
• W2131577792 cites W2047853380 @default.
• W2131577792 cites W2048811584 @default.
• W2131577792 cites W2050496558 @default.
• W2131577792 cites W2051845107 @default.
• W2131577792 cites W2056265500 @default.
• W2131577792 cites W2056484368 @default.
• W2131577792 cites W2056702722 @default.
• W2131577792 cites W2069070940 @default.
• W2131577792 cites W2070558686 @default.
• W2131577792 cites W2070599288 @default.
• W2131577792 cites W2073030296 @default.
• W2131577792 cites W2081863185 @default.
• W2131577792 cites W2082841767 @default.
• W2131577792 cites W2084131017 @default.
• W2131577792 cites W2086016154 @default.
• W2131577792 cites W2086966480 @default.
• W2131577792 cites W2088066153 @default.
• W2131577792 cites W2088820582 @default.
• W2131577792 cites W2089140383 @default.
• W2131577792 cites W2091385005 @default.
• W2131577792 cites W2093032397 @default.
• W2131577792 cites W2093121666 @default.
• W2131577792 cites W2093831153 @default.
• W2131577792 cites W2097743599 @default.
• W2131577792 cites W2097939669 @default.
• W2131577792 cites W2111866629 @default.
• W2131577792 cites W2122782572 @default.
• W2131577792 cites W2133648152 @default.
• W2131577792 cites W2135571916 @default.
• W2131577792 cites W2135846176 @default.
• W2131577792 cites W2136559070 @default.
• W2131577792 cites W2139414903 @default.
• W2131577792 cites W2141898554 @default.
• W2131577792 cites W2145706796 @default.
• W2131577792 cites W2145919392 @default.
• W2131577792 cites W2153970464 @default.
• W2131577792 cites W2154672847 @default.
• W2131577792 cites W2157241641 @default.
• W2131577792 cites W2163174041 @default.
• W2131577792 cites W2176264607 @default.
• W2131577792 cites W2315975535 @default.
• W2131577792 cites W2319021730 @default.
• W2131577792 cites W2325955875 @default.
• W2131577792 cites W2332718569 @default.
• W2131577792 cites W2334273673 @default.
• W2131577792 cites W2625669008 @default.
• W2131577792 cites W2950241767 @default.
• W2131577792 cites W2950675007 @default.
• W2131577792 cites W2951506925 @default.
• W2131577792 cites W2953272614 @default.
• W2131577792 cites W4236297409 @default.
• W2131577792 cites W1975594895 @default.
• W2131577792 doi "https://doi.org/10.1039/c1ra00408e" @default.

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