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.

引用

页码：3881 / 3891

页数：11

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