Bis(1-methyl-1-phenylethyl) peroxide

1,4-Bis[(1-methyl-1-phenylethyl)peroxymethyl]benzene.

The title compound, C(26)H(30)O(4), is one of the first alkyl bis-peroxides to be structurally characterized. The molecule lies on a centre of inversion and therefore the terminal phenyl rings are parallel. Although there are three aromatic rings in the molecule, the C-O-O-C torsion angle of 163.10 (10) degrees is close to the value found in Me(3)COOCMe(3).

Bis(1-methyl-1-phenyl­ethyl) peroxide

In the crystal structure, the title compound (also called dicumyl peroxide), C(18)H(22)O(2), lies on a center of symmetry. The COOC plane including the di-oxy group makes a dihedral angle of 79.10 (5)° with the phenyl ring. An inter-molecular C-H⋯π inter-action is observed between the phenyl groups.

Methyl ethyl ketone peroxide

Tandem [4 + 2]/[3 + 2] Cycloadditions of Nitroalkenes. 10. trans-2-(1-Methyl-1-phenylethyl)cyclohexanol as a New Auxiliary.

Insofar as one of the fundamenta l object ives of organic synthesis is the const ruct ion of complex molecules from simpler ones, the impor tance of synthet ic efficiency becomes immedia tely apparen t and has been well-recognized.1 The increase in molecula r complexity2 tha t necessar ily accompanies the course of a synthesis provides a guide (and a measure) of synthet ic efficiency. As a goal...

Modes of neighbouring group participation by the methyl selenyl substituent in β-methylselenylmethyl-substituted 1-phenylethyl carbenium ions.

Selenium substituents which are disposed β to an electron deficient centre, such as a carbocation p-orbital, or the π* orbital of an electron deficient p-system, interact in a stabilising way by a combination of C-Se hyperconjugation (σ(Se-C)-π* interaction), and a through-space homoconjugative n(Se)-π* interaction. The relative importance of these two modes of interaction is dependant on the e...