The generation of azulene radical cations from arylalkynes
作者:Christopher J. Cooksey、John L. Courtneidge、Alwyn G. Davies、Jeffrey C. Evans、Peter S. Gregory、Christopher C. Rowlands
DOI:10.1039/c39860000549
日期:——
Arylalkynes ArCCR (R = alkyl or aryl) undergo one-electron oxidation with dimerization and rearrangement to show the e.s.r. spectra of the corresponding azuleneradicalcations.
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
作者:Sylvia M. Draper、Catherine E. Housecroft、Ann K. Keep、Dorn M. Matthews、Brian S. Haggerty、Arnold L. Rheingold
DOI:10.1016/0022-328x(91)83016-w
日期:1991.6
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 crystalstructure of 1-phenyl-2,3-dimethylazulene has been determined