Arene ruthenium β-diketonato triazolato derivatives: Synthesis and spectral studies (β-diketones: 1-phenyl-3-methyl-4-benzoyl pyrazol-5-one, acetylacetone derivatives)

被引：22
|
作者：
Nongbri, Saphidabha L. [1 ]
Das, Babulal [2 ]
Rao, K. Mohan [1 ]
机构：
[1] NE Hill Univ, Dept Chem, Shillong 793022, Meghalaya, India
[2] Indian Inst Technol, Dept Chem, Gauhati, India
来源：
JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2009年 / 694卷 / 24期
关键词：
1-Phenyl-3-methyl-4-benzoyl pyrazol-5-one; Ruthenium; Hexamethylbenzene; Sodium azide; Triazoles; Cycloaddition; AZIDO COMPLEXES; 1,3-DIPOLAR CYCLOADDITIONS; ACTIVATED ALKYNES; CATALYZED CYCLOADDITION; COORDINATION CHEMISTRY; TETRAZOLATO COMPLEXES; CRYSTAL-STRUCTURES; X-RAY; LIGANDS; REACTIVITY;
D O I：
10.1016/j.jorganchem.2009.08.006
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Mononuclear neutral arene ruthenium(II) beta-diketonato complexes of the general formula (eta(6)-arene)-Ru (LL)Cl [LL = 1-phenyl-3-methyl-4-benzoyl pyrazol-5-one (L1), arene = C6H6 (1), p-(PrC6H4Me)-Pr-i (2), C6Me6 (3); arene = p-(PrC6H4Me)-Pr-i, LL = 1-benzoylacetone (L3) (8); arene = p-(PrC6H4Me)-Pr-i, LL = dibenzoylmethane (L4) (9)] have been synthesized and their subsequent substitution reactions with NaN3 in alcohol at room temperature yielded the corresponding neutral terminal azido complexes (eta(6)-arene)-Ru (LL) N3 [LL = 1-phenyl-3-methyl-4-benzoyl pyrazol-5-one (L1), arene = C6H6 (4), p-(PrC6H4Me)-Pr-i (6), C6Me6 (7); arene = p-(PrC6H4Me)-Pr-i, LL = dibenzoylmethane (L4) (10)] as well as a cationic complex [(eta(6)-p-(PrC6H4Me)-Pr-i) Ru(L4) (PPh3)] BF4 (12) with PPh3. The [3 + 2] cycloaddition reaction of selective azido complexes with the activated alkynes dimethyl and diethyl acetylenedicarboxylates produced the arene triazolato complexes [(eta(6)-arene) Ru(LL){N3C2(CO2R)(2)}] [arene = p-(PrC6H4Me)-Pr-i, LL = L1, R = Me (13); arene = C6Me6, LL = L1, R = Me (14); arene = C6Me6, LL = acetyl acetone (L2), R = Me (15); arene = C6Me6, LL = L3, R = Me (16); arene = p-(PrC6H4Me)-Pr-i, LL = L1, R = Et (17); arene = C6Me6, LL = L1, R = Et (18); arene = C6Me6, LL = L2, R = Et (19); arene = C6Me6, LL = L3, R = Et (20)]. With fumaronitrile the reaction yielded the triazoles [(eta(6)-arene) Ru(LL)(N3C2HCN)] [arene = p-(PrC6H4Me)-Pr-i, LL = L1 (21), arene = C6Me6, LL = L1 (22), arene = C6Me6, LL = L2 (23), arene = C6Me6, LL = L3 (24)]. In the above triazolato complexes only N(2) isomer was obtained. The complexes were characterized on the basis of spectroscopic data. Crystal structure of representatives complexes were determined by single crystal X-ray diffraction. (C) 2009 Elsevier B. V. All rights reserved.
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收藏
页码：3881 / 3891
页数：11
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