Wang, Sheng-Li published the artcileSynthesis of biphenylenes and their higher homologues by cyclization of aryne derivatives, Synthetic Route of 1451393-45-5, the publication is Angewandte Chemie, International Edition (2017), 56(46), 14694-14697, database is CAplus and MEDLINE.
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 1451393-45-5. 1451393-45-5 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Bromide,Boronic acid and ester,Benzene,Boronic Acids,Boronic acid and ester, name is (2-Bromo-4-chlorophenyl)boronic acid, and the molecular formula is C22H32O2, Synthetic Route of 1451393-45-5.
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