The Synthesis and Structure of Group 5 Metal Alkyl and Alkylidene Complexes containing 2,6-Dialkylphenoxide Ligands: X-Ray Crystal Structures of , , and t2-2,6)2(=CHSiMe3)(CH2SiMe3)>

DOI: 10.1039/DT9870000155

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 155 - 162 (1987)

Update date:2022-08-02

Topics:

Authors:

Chamberlain, Linda R.

Rothwell, Ian P.

Folting, Kristen

Huffmann, John C.

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

Article abstract of DOI:10.1039/DT9870000155

A number of alkyl and alkylidene complexes of niobium and primarily tantalum containing 2,6-dialkylphenoxide ligation, OC6H3R2-2,6 (R = Me, Prⁱ, or Bu^t) have been synthesized and characterized.For the sterically less demanding 2,6-dimethyl- and 2,6-di-isopropyl-phenoxides a series of compounds (R' = H, SiMe3, or Ph) can be readily obtained by alkylation of the corresponding mixed chloro-aryloxide.The remaining two aryloxides are more resistant to further substitution.Spectroscopic evidence supports the ?-bonded compounds adopting a trigonal-bipyramidal structure with trans-axial aryloxide ligands.This structure was confirmed by a single-crystal X-ray diffaction study on .The di- and mono-alkyls and have also been isolated and the latter shown to adopt a square-pyramidal structure in the solid state with an axial methyl group.In contrast the reaction of t2-2,6)2Cl3> with Li(CH2SiMe3) or Mg(CH2Ph)2 leads to the mixed alkyl-alkylidene complexes t2-2,6)2(=CHR')(CH2R')> (R' = SiMe3 or Ph).The presence of the alkylidene functional group was confirmed both spectroscopically and by a single-crystal X-ray diffraction study on the trimethylsilyl derivative.A related complex, i2-2,6)2(=CHSiMe3)(CH2SiMe3)>, was obtained by photolysis of i2-2,6)2(CH2SiMe3)3>.

Full text of DOI:10.1039/DT9870000155

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

View Article Online

Products guided by the article

Product name:tribenzylbis(2,6-di-isopropylphenoxo)tantalum(V)

Cas No:110024-00-5

R&D Labs maybe for 110024-00-5

SunaTech Inc.

Contact:+86 512 6287 2180

Address:398 Ruoshui Road, Suzhou Industrial Park, Suzhou, Jiangsu, P. R. China
HANGZHOU TOYOND BIOTECH CO., LTD

Contact:+86-571-86965177

Address:No. 189, Fengqi East Road, Hangzhou, China
Sinonine Industry Co.,Ltd

Contact:86+21-56421993

Address:3F,BUILDING 10,NO.2889 JINKE ROAD, SHANGHAI.
Shanghai Surseechem Co.,Ltd.

Contact:+86-21-61318535

Address:Building 29,No.2139 Xizha Road, Fengxian District, Shanghai
Chemsky（shanghai）International Co.,Ltd.

Contact:0

Address:0

Relevant to this article

Identification of Psychoplastogenic N, N-Dimethylaminoisotryptamine (isoDMT) Analogues through Structure-Activity Relationship Studies

Doi:10.1021/acs.jmedchem.9b01404
(2020)
Solvent-free synthesis of triazines using N-halosulfonamides

Doi:10.1039/c4ra10892b
(2015)
Chemistry of Phosphorus Ylides: Part 46—Efficient Synthesis and Biological Evaluation of New Phosphorus, Sulfur, and Selenium Pyrazole Derivatives

Doi:10.1002/jhet.3361
(2018)
Highly enantioselective Michael addition of 2-oxindole- 3-carboxylate esters to nitroolefins promoted by cinchona alkaloid-thiourea-Bronsted acid cocatalysts

Doi:10.1002/adsc.201200206
(2012)
Discovery of 1,3,4-oxidiazole scaffold compounds as inhibitors of superoxide dismutase expression

Doi:10.1016/j.bmcl.2014.01.078
(2014)
Tris (trimethylsilyl)silane in the deoxygenation of long chain unsaturated alcohols converts cis to trans isomers

Doi:10.1016/0040-4039(92)88137-T
(1992)

Article Doi