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Benzocyclobutene ring closur

Cyanobenzocyclobutene has been prepared from sodium cyanide and 1-bromobenzocyclobutene,5 formed by reaction of benzocyclobutene with N-bromosuccinimide,6 and by ring closure of o-chlorohydrocinnamonitrile with potassium amide in liquid ammonia.7 The present procedure is a modification of the latter method and was previously described by one of the submitters.8... [Pg.115]

Oppolzer W (1978) A review on the use of intramolecular ring closures of benzocyclobutenes to synthesize natural products, Synthesis, p 794... [Pg.64]

II. The benzocyclobutene derivative can be prepared by direct reaction of o-bromobenzyl bromide with RgSiCla in the presence of magnesium 108, 129). The small membered ring system has also been synthesized by ring closure with formation of one ring bond ... [Pg.179]

SCHEME 19.40. Benzocyclobutene ring opening-bre-electrocyclic closure. [Pg.542]

See other pages where Benzocyclobutene ring closur is mentioned: [Pg.160]    [Pg.967]    [Pg.16]    [Pg.17]    [Pg.854]    [Pg.194]    [Pg.222]    [Pg.57]    [Pg.854]    [Pg.693]    [Pg.741]    [Pg.967]    [Pg.741]    [Pg.41]    [Pg.111]    [Pg.601]    [Pg.541]    [Pg.328]    [Pg.190]    [Pg.190]    [Pg.419]   
See also in sourсe #XX -- [ Pg.22 ]



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