Reactions of tert-Butyl Isocyanate and Trimethylsilyl Azide with Imidoamido Compounds of Chromium, Molybdenum and Tungsten

DOI: 10.1039/DT9930000781

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 781 - 788 (1993)

Update date:2022-08-03

Topics:

Authors:

Lam, Hon-wah

Wilkinson, Geoffrey

Hussain-Bates, Bilquis

Hursthouse, Michael B.

Read Full Text PDF DownLoad Join now for total 90,000,000 free articles

Article abstract of DOI:10.1039/DT9930000781

tert-Butyl isocyanate and Cr(NBu^t)2(NHBu^t)2 react to form a complex containing the dianion of N,N',N''-tri-tert-butylbiuret Cr(NBu^t)2<tNC(O)>2NBu^t>.The crystal structure of its hydrogen-bonded adduct with t(H)NC(O)>2NBu^t has been determined and the ligand found to bind its three N atoms, whereas in solution the (1)H NMR spectrum indicates a six-membered chromium metallacyclic structure.Interaction of Mo(NBu^t)2(NHBu^t)2 and of Cr(NBu^t)2 with Bu^tNCO, gives (M = Cr, R = C6H3Cl2-2,6; M = Mo, R = Bu^t) confirmed by the crystal structure of the molybdenum compound as having N,O bonding in a four-membered metallacycle.The previously described tungsten analogue has been reformulated as having the same structure.In all these reactions Bu^tNCO is inserted into the M-N bond of the MNHR groups and not into that of the MNR imido groups.The tungsten ureato(1-)-N,O compound reacts with HCl in Et2O to give WCl3(NBu^t)(NHBu^t)t)2> and the crystal structure confirms an octahedral structure with unidentate O-bonded di-tert-butylurea.Interaction of M(NBu^t)2(NHBu^t)2, M = Cr or W, with SiMe3(N3) gives, respectively, the azido species Cr(NBu^t)2(N3)2 and t)2(N3)(NH2Bu^t)>2(μ-N3)2.The structure of the latter has been confirmed by X-ray crystallography.

Full text of DOI:10.1039/DT9930000781

View Article Online / Journal Homepage / Table of Contents for this issue

View Article Online

Products guided by the article

Product name:bis(tert-butylimido)bis(2,6-dichlorophenylamido)chromium(VI)

Cas No:148182-26-7

R&D Labs maybe for 148182-26-7

Nantong Kaixin Pharma Chemical Co.,Ltd.

Contact:86-513-85250786

Address:2-1103 Huachen Mansion, 111 Gongnong Road,Nantong, Jiangsu, China
Chengdu Pukang Biotechnology Co., Ltd

website:http://www.pu-kang.com

Contact:86-028-63976226

Address:No. 868 Xiwang Road,Xinjin county,Chengdu city, China
Landz International Company Ltd.

Contact:0086-21-58891610

Address:985 Dongfang Road, Pudong, Shanghai 200122 China
HANGZHOU GOPHER CHEM-TECH CO.,LTD

Contact:86-189-58111780

Address:Da Cheng Ming Zuo Plaza,Xiaoshan District
Rizhao Lanxing Chemical Indusrial Co.,Ltd

Contact:86-633-2616708

Address:NO.15 West road Shenglan, Lanshan district, Rizhao City

Relevant to this article

Synthesis of (2-amino)ethyl derivatives of quercetin 3-O-methyl ether and their antioxidant and neuroprotective effects

Doi:10.1016/j.bmc.2015.05.023
(2015)
Sulfur-Substituted Phosphatidylethanolamines

Doi:10.1021/jo00059a061
(1993)
Laser Flash Photolysis Studies on Intramolecular Hydrogen Atom Transfer of <(Hydroxynaphthyl)propyl>benzophenone and Intramolecular Proton-Induced Electron Transfer of <(Methoxynaphthyl)propyl>benzophenone via Triplet Exciplexes

Doi:10.1021/j100129a015
(1993)
Radical scavenging activity and performance of novel phenolic antioxidants in oils during storage and frying

Doi:10.1007/s11746-011-1889-6
(2012)
X-ray diffraction and theoretical studies for the quantitative assessment of intermolecular arene-perfluoroarene stacking interactions

Doi:10.1002/chem.200501248
(2006)
Synthesis, and spectral and X-ray structural studies of a novel delocalised triphosphazene (CF3)2P=N=P(CF3)2=N=PPh3 and the triosmium cluster complex Os3(CO)11<(CF3)2P=N=P(CF3)2=N=PPh3>

Doi:10.1016/0022-328X(93)80088-S
(1993)

Article Doi