Triangulanes linear

The comparison of SEs for alkenes 1, 2, and methylenespiropentane 6 with those for cyclopropane and the linear triangulanes 96,97 is shown in Table 4. 

For classification purposes, triangulanes have been divided into three types—linear (43), branched (4) and cyclic (44)9. Compounds 45 and 46 can be considered as precursors to unknown, extremely strained [4]- and [5]cyclotriangulanesM 65. 

An application of graph theory to the problem of isomerism in linear triangulanes provided a program which allowed one to follow the development of a generation tree for each... 

The chain of three-membered rings in linear triangulanes has a unique helix-like geometry (e.g. in all tra .v-[ ]triangulane 61). This allows cyclopropyl fragments which are separated by several three-membered units to potentially reside very close in space. Thus, triangulanes are very useful models for studies of proximity-induced reactions. 

In addition to linear and branched triangulanes, a new class of triangulanes, cyclic triangulanes 3 (CT), has been proposed as an additional subclass of triangulanes. ... 

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