All articles of this category Synthetic routes towards tetraethynylallene (4) , a perethynylated modular entity for the construction of three-dimensional all-carbon networks and all-carbon backbone polymers with a stepladder or helical structure, are presented. They comprise propargylic rearrangements, cyclopropanations with carbenes, Peterson and Wittig-type olefinations, and alkylations of ketones with α -bromovinyl anions. carbon networks - carbon-rich polymers - allene cycloadditions - tetraethynylallene - perethynylated compounds - haloallenes - para -quinodimethanes
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Lange et al. (1996) studied this question.