29568-12-5Relevant academic research and scientific papers
Palladacycle-catalyzed carbonylation of aryl iodides or bromides with aryl formates
Chen, Guangwei,Leng, Yuting,Yang, Fan,Wang, Shiwei,Wu, Yangjie
, p. 1488 - 1494 (2014/01/06)
An efficient palladacycle-catalyzed aromatic carbonylation reaction of aryl formates with aryl iodides or bromides has been developed. Commercially available and easily prepared aryl formates were employed as carbonyl sources without the use of external carbon monoxide. The present catalytic system shows broad functional group tolerance and affords aryl benzoate derivatives in good to excellent yields. Copyright
Synthesis of core cross-linked star polymers consisting of well-defined aromatic polyamide arms
Ohishi, Tomoyuki,Masukawa, Tomohiro,Fujii, Shuichi,Yokoyama, Akihiro,Yokozawa, Tsutomu
experimental part, p. 3206 - 3214 (2011/10/13)
Homopolymer-arm, block-arm, and miktoarm star polymers consisting of poly(N-octylm-benzamide) and poly(N-H-m-benzamide) were synthesized by means of a core cross-linking method. Macromonomers (MM) with the styryl terminal moiety were synthesized by chain-growth condensation polymerization of 3-(alkylamino)benzoic acid esters 1 in the presence of phenyl 4-vinylbenzoate as an initiator, and copolymerization with N,N'-methylenebis(acrylamide) as a divinyl monomer in the presence of 2,2'-azobis(isobutyronitrile) at 60 °C yielded the corresponding star polymers. In the synthesis of star polymers containing poly(N-H-m-benzamide) arms, the 4-(octyloxy)benzyl group on the amide nitrogen of the obtained star polymers was removed with trifluoroacetic acid. The number of arms per molecule, determined by multiangle laser light scattering, varied in the range of 36-100 depending on the N-alkyl group of 1 and the molecular weight of MM. The 1H NMR spectra of the star polymers in dimethyl sulfoxide revealed that the poly(N-octyl-m-benzamide) segments and arms of the block-arm and miktoarm star polymers, respectively, were compactly packed at room temperature and became extended at higher temperatures.
One-pot synthesis of cyclic triamides with a triangular cavity from trans-stilbene and diphenylacetylene monomers
Yokoyama, Akihiro,Maruyama, Takurou,Tagami, Kei,Masu, Hyuma,Katagiri, Kosuke,Azumaya, Isao,Yokozawa, Tsutomu
supporting information; experimental part, p. 3207 - 3210 (2009/05/11)
(Chemical Equation Presented) Base-promoted self-condensation reactions of trans-stilbene and diphenylacetylene monomers bearing 4-alkylamino and 4′-methoxycarbonyl groups were investigated. Reactions of N-propyl monomers under pseudohigh-dilution conditions (a THF solution of monomer was added dropwise to a THF solution of LiHMDS) afforded the corresponding cyclic triamides in good yields. X-ray crystallographic analysis showed that these cyclic triamides possessed an almost equilateral triangle structure with a cavity surrounded by tilted benzene rings.
