Wang, Sheng-Li published the artcileSynthesis of biphenylenes and their higher homologues by cyclization of aryne derivatives, Category: chlorides-buliding-blocks, the main research area is halobiaryl cyclization; biphenylene preparation; arynes; biphenyls; cyclizations; lithium; synthetic methods.
This investigation demonstrates that a series of biphenylenes, e.g., I, can be easily prepared from their corresponding halobiphenyls by the cyclization of in situ generated 2′,3′-didehydro-2-lithiobiphenyls at low temperature Two remarkable advantages of this synthetic method include the lack of any need for transition-metal catalysts or reagents in the cyclization, and the ability to obtain C1-functionalized products by treating the reaction intermediate 1-lithiobiphenylene with an electrophilic reagent. π-Extended derivatives, such as benzobiphenylenes, dibenzobiphenylene, linear/angular [3]phenylenes, and biphenyleno[2,3-b]biphenylenes, were synthesized similarly using suitable biaryls or teraryls.
Angewandte Chemie, International Edition published new progress about Aromatic hydrocarbons, arynes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 6797-79-1 belongs to class chlorides-buliding-blocks, name is 4-Chloro-2-fluoroiodobenzene, and the molecular formula is C6H3ClFI, Category: chlorides-buliding-blocks.
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics