3088-15-1Relevant academic research and scientific papers
Reversible-irreversible approach to schiff base macrocycles: Access to isomeric macrocycles with multiple salphen pockets
Frischmann, Peter D.,Jiang, Jian,Hui, Joseph K.-H.,Grzybowski, Joseph J.,MacLachlan, Mark J.
scheme or table, p. 1255 - 1258 (2009/04/06)
We have developed methodology for the formation of a new family of metal-free Schiff base macrocycles utilizing the differential exchange rates of aldimines and ketimines. The more robust ketimine bond Is kinetically Inert under the milder conditions used for aldimine bond formation. In particular, this route enables access to the first conjugated macrocycles with four unsymmetrical N2O2 salphen-like pockets.
Facile synthesis of regio-isomeric naphthofurans and benzodifurans
Park, Kwanghee Koh,Jeong, Jinsuk
, p. 545 - 553 (2007/10/03)
Naphtho[1,2-b]furans 1a-f, naphtho[2,1-b]furans 2a-f, benzo[1,2-b:5,4- b′]difurans 3a-b, benzo[1,2-b:4,5-b′]difurans 4a-b, and benzo[1,2-b:4,3-b′]difurans 5a-b were synthesized by base-catalyzed cyclization reaction of the corresponding o-alkoxybenzoylarene derivatives. The o-alkoxybenzoylarenes were obtained from the etherification reaction of the o-hydroxybenzoylarenes, which were prepared either by the reaction of methoxyarenes with benzoyl chloride in the presence of aluminum chloride or by photo-Fries rearrangement of aryl benzoates. Graphical Abstract.
Synthesis of novel cyclophanes containing both benzo[1,2-b:5,4-b']difuran and naphthalene rings
Park, Kwanghee Koh,Lim, Hongsan,Kim, Sun-Hyuk,Bae, Dae Hyun
, p. 310 - 314 (2007/10/03)
Facile routes for the synthesis of novel cyclophanes 1a, b containing both benzo[1,2-b:5,4-b']difuran and naphthalene rings have been developed. Irradiation of 1,5-dibenzoyl-2,4-dialkoxybenzene derivatives 3a, b with a 350 nm mercury lamp followed by dehy
Synthesis of substituted 2,3,5,6-tetraarylbenzo[1,2-b:5,4-b']difurans
Abdul-Aziz,Auping,Meador
, p. 1303 - 1308 (2007/10/02)
A series of substituted 2,3,5,6-tetraarylbenzo[1,2-b:5,4-b']difurans 1 was synthesized. This synthesis is based upon the photocyclization of 2,5-dibenzoylresorcinol dibenzyl ethers to the corresponding tetrahydrobenzo[1,2-b:5,4-b']difurans. Treatment of t
Silylated agents useful for absorbing ultraviolet light
-
, (2008/06/13)
Novel silylated agents capable of absorbing ultraviolet light are incorporated into silicone hardcoats and used to coat polycarbonate substrates. The coated polycarbonate substrates display improved resistances to abrasion and ultraviolet light.
Photo-Fries Rearrangement: Rearrangement of Benzoyloxy Compounds
Sharma, Pavan K.,Khanna, Rajinder N.
, p. 353 - 356 (2007/10/02)
Photo-Fries migration of the benzoyl group in 1-benzoyloxy-5-methoxy naphthalene, 1,4-dibenzoyloxy-2-methyl naphthalene, 1,4-dibenzoyloxy naphthalene, 1,5-dibenzoyloxy naphthalene, 8-benzoyloxy quinoline, 1,2-dibenzoyloxy benzene, 1,3-dibenzoyloxy benzene, and 1,4-dibenzoyloxy benzene afforded the corresponding mono and di-C-benzoyl products. - Keywords: Naphthyl benzoate derivatives; 8-Benzoyloxy quinoline; Phenyl dibenzoates
