Composit-cumulene

So-Called Composit-Cumulene I" from Scentless Mayweed (Matricaria inodora L.). Festschrift Arthur Stoll, p. 545- Basel Birkhauser 1957. 

Sorensen, N. A., and K. Stavholt A Hexahydro Matricaria ester — Composit-Cumulene 1 from Scentless Mayweed Matricaria inodora L.). Acta Chem. Scand. 4, 1080 (1950). 

Christensen, P. K., N. A. Sorensen, I. Bell, E. R. H. Jones, and M. C. Whiting Constitution of the so-called Composit-cumulene 1 from Scentless Mayweed Matricaria inodora). Festschr. Arthur Stoll 545 (1957) [Cheiii. Abstr. 53, 346e, (1959)]. 

In recent years The Chemistry of Functional Groups series has included three volumes on composite functional groups in which a C=C double bond was attached to another group. The chemistry of enones (edited by S. Patai and Z. Rappoport) appeared in 1989 The chemistry of enols (edited by Z. Rappoport) appeared in 1990 and The chemistry of enamines (edited by Z. Rappoport) appeared in 1994. We believe that the time has arrived for a book dealing with the combination of C=C double bonds, namely dienes and polyenes. The two double bonds can be conjugated, and conjugated dienes have a chemistry of their own, but even non-conjugated dienes show certain reactions that involve both double bonds. Allenes and cumulenes, which represent a different combination of the double bonds were treated in The chemistry ofketenes, allenes and related compounds, edited by S. Patai in 1980. 

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