113769-85-0Relevant articles and documents
6-Arylphenanthridines from Aryl o-Biaryl Ketones with 1,1,1,3,3,3-Hexamethyldisilazane and Molecular Iodine
Kobayashi, Eiji,Kishi, Atsushi,Togo, Hideo
, p. 7335 - 7347 (2019/11/22)
Warming treatment of aryl o-biaryl ketones with 1,1,1,3,3,3-hexamethyldisilazane in the presence of Sc(OTf)3 in toluene, followed by the reaction with molecular iodine and K2CO3 in a mixture of THF and methanol at 60 °C gave the corresponding 6-arylphenanthridines in good to moderate yields. The present reaction is a one-pot method for the preparation of 6-arylphenanthridines from aryl o-biaryl ketones through the cyclization of imino-nitrogen-centered radicals that were generated from N-iodo aryl o-biaryl ketimines formed from the reaction of aryl biaryl ketimines with molecular iodine.
Highly efficient synthesis of polysubstituted fluorene via iron-catalyzed intramolecular Friedel-Crafts alkylation of biaryl alcohols
Sarkar, Soumen,Maiti, Sukhendu,Bera, Krishnendu,Jalal, Swapnadeep,Jana, Umasish
, p. 5544 - 5547 (2012/11/07)
An efficient and mild Fe(III)-catalyzed intramolecular Friedel-Crafts alkylation of biaryl methanol derivatives has been developed to achieve the substituted fluorene derivatives. The present reaction provides an excellent alternative to published methods
A general and efficient synthesis of substituted fluorenes and heterocycle-fused indenes containing thiophene or indole rings utilizing a Suzuki-Miyaura coupling and acid-catalyzed Friedel-Crafts reactions as key steps
Li, Guijie,Wang, Erjuan,Chen, Haoyi,Li, Hongfeng,Liu, Yuanhong,Wang, Peng George
, p. 9033 - 9043 (2008/12/22)
A general and efficient synthesis of fluorenes or heterocycle-fused indenes including 3-thia-cyclopenta[a]indenes, 9-thia-indeno[1,2-a]indenes, 5,6-dihydroindeno[2,1-b]indoles has been developed. This methodology is realized by a multistep protocol involv
Synthesis of 4-(4'-Chlorophenyl)-5-phenyl-1,2-dihydronaphthalene
Cosmo, Robert,Sternhell, Sever
, p. 1499 - 1509 (2007/10/02)
BF3-catalysed cyclization reactions of 1-(biphenyl-2'-yl)-1-(4"-chlorophenyl)but-3-en-1-ol yielded none of the desired title compound but only 9-(4'-chlorophenyl)-10-ethylphenanthrene and 9-allyl-9-(4'-chlorophenyl)fluorene by alternative cyclization path