Access to aminophenylcarbenes via diazirine exchange reactions

Phenylbromodiazirine (1) reacts with a variety of primary and secondary amines affording a series of aminophenylcarbenes (3).     

Book Reviews

Finite Dimensional Linear Analysis: A Systematic Presentation in Problem Form,by I.M. Glazman and Ju. I. Ljubic, translated and edited by G.P. Barker and G.Kuerti. MIT Press, 520 pp.($18.50)

An Introduction to Linear Algebra, by Hans Samelson. John Wiley & Sons, New York, 1974 xi+265pp.($15.95).     

Determination of anionic surfactants by bis(ethylenediamine)copper(II) extraction and anodic stripping voltammetry

A stripping voltammetric finish for the measurement of total anionic surfactant has been developed. A limit of detection of 5.0 μg 1^?1 anionic surfactant was observed with a linear calibration from 5.0 to 500 μg 1^?1 in the original sample.     

(+)-Africanal,a new lignan of the aryltetrahydronaphthalene class

The absolute configuration (1R,2R,3R,3aS) and structural relationships of africanal, a novel lignan from Olea africana, are defined.