Document Detail


The interaction of molybdenum pentachloride with carbonyl compounds.
MedLine Citation:
PMID:  23207554     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The reactions of MoCl(5), , with small amounts of a series of carbonyl compounds in a chlorinated solvent were investigated. The chloroiminium salts [ClCH[double bond, length as m-dash]NEt(2)][Mo(O)Cl(4){O[double bond, length as m-dash]C(H)NEt(2)}], , and [Cl[upper bond 1 start]C[double bond, length as m-dash]NH(CH(2))(4)C[upper bond 1 end]H(2)][Mo(O)Cl(4){O[double bond, length as m-dash][upper bond 1 start]CNH(CH(2))(4)C[upper bond 1 end]H(2)}], , were obtained by a selective 1 : 2 molar reaction of with, respectively, N,N-diethylformamide or ε-caprolactam. Otherwise reacted with tetra-N-alkyl ureas in a 1 : 2 ratio to give the Mo(iv) mononuclear complexes MoCl(4)(urea)(2) [urea = (Me(2)N)(2)CO, ; urea = (Et(2)N)(2)CO, ; urea = (EtPhN)(2)CO, ] in high yields. Addition of 2 equiv. of ketones to resulted in clean formation of equimolar amounts of MoOCl(3)(O[double bond, length as m-dash]CR(2)) (R = Me, ; R = Et, ; R = Ph, ) and R(2)CCl(2). Analogously 1,2-C(6)H(4)(Me)(CHCl(2)) was produced from MoCl(5) and ortho-tolyaldehyde. The reactions of with 1H-indole-2,3-dione (isatin) took place with selective chlorination of the carbonyl function non-adjacent to the nitrogen: the complexes MoOCl(3)(3,3-dichloro-2,3-dihydro-1H-indol-2-one)(2), , and MoOCl(3)(isatin)(3,3-dichloro-2,3-dihydro-1H-indol-2-one), , were isolated depending on the stoichiometry employed. The X-ray molecular structures of , , , and were ascertained.
Authors:
Fabio Marchetti; Guido Pampaloni; Stefano Zacchini
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-4
Journal Detail:
Title:  Dalton transactions (Cambridge, England : 2003)     Volume:  -     ISSN:  1477-9234     ISO Abbreviation:  Dalton Trans     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101176026     Medline TA:  Dalton Trans     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
University of Pisa, Dipartimento di Chimica e Chimica Industriale, Via Risorgimento 35, I-56126 Pisa, Italy. fabmar@dcci.unipi.it.
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