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| Author(s) |
Peerappa, Yadav, S.; Sahil, D.; Tyagi, A.; Karmakar, G.; and others
(ChD)
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| Source |
ChemistrySelect, 2024. Vol. 9 (1): pp. 1-10: Article no. e202303058 |
| ABSTRACT
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Treatment of [CuCl2(PPh3)2] with N-heterocyclic thiols, i. e., 4,6-dimethyl pyrimidine-2-thiol (dmpymSH), pyridine-2-thiol (pySH), resulted partially substituted product [CuCl(L)(PPh3)2] (L = C5H4NSH (pySH), SC4H(4,6-Me2N2H) (dmpymSH). However, similar reaction with [CuI(PPh3)]4 yielded a products [CuI(pySH)(PPh3)2] (py =C5H4N) and [CuI(dmpymSH)(PPh3)2](dmpym=C4H(4,6-Me2N2); respectively. The molecular structure of complex [CuCl(dmpymSH)(PPh3)2].CH3CN (1 b) has been determined through the single crystal X-ray crystallography technique. All the synthesized complexes were fully characterized through various spectroscopic techniques (IR, 1H, 13C{1H}, 31P{1H} NMR). The complexes 1 a, 1 b, 2 a and 2 b showed excellent catalytic activities for azide-alkyne cycloaddition reaction in water as green solvent upto 90 % yield with 0.5 mol % of catalyst loading. Among all the synthesized complexes, compound [CuI(pySH)(PPh3)2] (2 a) turned up as a better catalyst with 90 % yield, applying 0.5 mol % catalyst. |
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