56406-06-5Relevant academic research and scientific papers
The insertion of 1-phenyl-1-propyne into the ruthenaborane cluster HRu4(CO)12BH2 and the isolation and molecular structure of 1-phenyl-2,3-dimethylazulene
Draper, Sylvia M.,Housecroft, Catherine E.,Keep, Ann K.,Matthews, Dorn M.,Haggerty, Brian S.,Rheingold, Arnold L.
, p. C44 - C48 (1991)
Photolysis of the tetraruthenaborane butterfly cluster HRu4(CO)12BH2 with 1-phenyl-1-propyne yields the cluster product HRu4(CO)12B(H)C(Ph)CMeH.Interestingly, 1-phenyl-2,3-dimethylazulene has also been isolated from the reaction mixture.The formation of this substituted azulene is an example of a novel cyclodimerisation of the alkyne.The crystal structure of 1-phenyl-2,3-dimethylazulene has been determined.
GENERATION OF AZULENE RADICAL CATION FROM ARYLALKYNES
Cooksey, Christopher J.,Courtneidge, John L.,Davies, Alwyn G.,Gregory, Peter S.,Evans, Jeffrey C.,Rowlands, Christopher C.
, p. 807 - 814 (2007/10/02)
If a diarylalkyne 4-XC6H4CCR (R=Ph, 4-MeC6H4, or 4-ButC6H4) or 1-phenylpropyne in trifluoroacatic acid containing mercury(II) trifluoroacetate is irradiated with u.v. light filtered through Pyrex glass, the e.s.r. spectrum of the corresponding azulene can be obsreved.The azulenes have been isolated and converted back into their radical cations by irradiation in trifluoroacetic acid, or in dichloromethane containing (4-BrC6H4)3N+. or (2,4-Br2C6H3)3N+..Possible mechanisms by which the azulenes are formed the alkynes are discussed.
The Generation of Azulene Radical Cations from Arylalkynes
Cooksey, Christopher J.,Courtneidge, John L.,Davies, Alwyn G.,Evans, Jeffrey C.,Gregory, Peter S.,Rowlands, Christopher C.
, p. 549 - 550 (2007/10/02)
Arylalkynes ArCCR (R = alkyl or aryl) undergo one-electron oxidation with dimerization and rearrangement to show the e.s.r. spectra of the corresponding azulene radical cations.
