2,6-di t-Butyl-l,4-benzoquinone

Cl 9H1 902Rh, TT-Indenyl-TT-duroquinone-rhodium, 37B, 468 Cl9H2sOaRh, TT-Cyclopentadienyl-pi(2,6-di-t-butyl-l,4-benzoquinone)-rhodium, 34B, 467... 

Preparation, This ketene (2) is obtained in nearly quantitative yield by thermal cleavage of 2,5-diazido-3,6-di-t-butyl-l,4-benzoquinone (l)2 in refluxing benzene. This... 

Supercritical CO2 is gaining importance as a reaction medium. The oxidation of substituted phenols by O2 has been studied in supercritical CO2 using [ N,N -bis(3,5-di-/e t-butylsalicylidene)-1,2-cyclohexanediaminato(2- ) -cobalt(II)] as catalyst Both oxidase and oxygenase activities are observed with 2,6-di-terr-butylphenol as substrate at 70 C and 207 bar total pressure, at an 02 phenol catalyst ratio of 1500 20 1, and a methylimidazole to catalyst ratio of 1.28. Total conversion to 2,6-di-terr-butyl-l,4-benzoquinone and 3,5,3 ,5 -tetra-tm-butyl-4,4 -diphenoquinone took place in 21 h. 

Ci4H2 02r 2,6-Di-t-butyl-1,4-benzoquinone, 39B, 83 Cl6H22N2O2 f 2,5-Dipiperidino-l,4-benzoquinone, 40B, 123 C16H2 2O2 f 2,5-Pentamethyleneimino-1,4-benzoquinone, 37B, 67 C17H16O3, 0-Methylobtusaquinone, 39B, 83... 

Similar chain molybdenum compounds [Mo2(02CCF3)4 L] (L = 9,10-antra-quinone or 2,6-dimethylbenzoquinone) were prepared and characterized by x-ray structure analyses, 13C-NMR spectra, and cyclic voltammetry [230,231], In case of use of 2,6-di-t-butyl- -benzoquinone (2,6-t-Bu-BQ), a / /,v-/ -quinone adduct [Mo2(02CCF3)4(2,6-t-Bu-BQ)2] was isolated [231],... 

Muconic acid anhydride 4,6-di-t-Butyl-2H-pyra-n-2-one spiro [1,4-benzodioxin-2(3H), 2 -[2H]pyran]-3-one 4, 6,6, 8-tetrakis (1,1 -dimethylethyl) 3,5-di-t-butyl-5 (carboxymethyl) -2-furanone 3, 5-di-t-butyl-l, 2-benzoquinone... 

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