INDEX alkene complexes

This index is provided so that the reader might locate information about a particular complex of interest. It is organized as follows The first section contains the neutral binary complexes, followed by charged dimers, and then by larger complexes in the last section. Within each section, the complexes are ordered by the type of molecules contained. The order is as follows XH, YH2, ZH3, carbonyl, carboxyl, imine, amide, nitrile, alkyne, alkene, alkane, others. (X refers to any halogen F, Cl, Br, I Y to O, S, etc. and Z to N, P, etc.) Any alkylated or similar substitutions follow immediately after their parent group. 

Stereoselectivity of cyclopropanation with 22 alkenes and regioselectivity of monosubstituted buta-l,3-dienes are highest for a copper(i) catalyst, intermediate for two Rh catalysts and lowest for a PdCl2 complex. On the basis of these comparisons, Doyle et al. were able to define and determine simple linear relationships, namely an index S of relative stereoselectivity (1984 a), and R of relative regioselectivity (1982 b). More data on stereo- and regioselectivities were summarized by Doyle (1986). We shall return to the mechanism of stereoselectivity of cyclopropanation later in this section in the context of dihydrofuran formation. 

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