7642-33-3Relevant academic research and scientific papers
1-Iodobuta-1,3-diynes in Copper-Catalyzed Azide-Alkyne Cycloaddition: A One-Step Route to 4-Ethynyl-5-iodo-1,2,3-triazoles
Govdi, Anastasia I.,Danilkina, Natalia A.,Ponomarev, Alexander V.,Balova, Irina A.
, (2019/02/14)
Cu-catalyzed 1,3-dipolar cycloaddition of iododiacetylenes with organic azides using iodotris(triphenylphosphine)copper(I) as a catalyst was found to be an efficient one-step synthetic route to 5-iodo-4-ethynyltriazoles. The reaction is tolerant to various functional groups in both butadiyne and azide moieties. The synthetic application of 5-iodo-4-ethynyl triazoles obtained was also evaluated: the Sonogashira coupling with alkynes resulted in unsymmetrically substituted triazole-fused enediyne systems, while the Suzuki reaction yielded the corresponding 5-aryl-4-ethynyl triazoles.
Mori-Hiyama versus hay coupling for higher polyynes
Gulia, Nurbey,Osowska, Karolina,Pigulski, Bartlomiej,Lis, Tadeusz,Galewski, Zbigniew,Szafert, Slawomir
experimental part, p. 4819 - 4830 (2012/10/18)
Dimerizations of C4 precursors RCa=CCa=CTMS [R = C 6H5 (1), p-CH3C6H5, (2), 4-n-C5H11C6H4 (3), C 6H9 (4), p-CH3O
Synthesis and molecular properties of donor-π-spacer-acceptor ynamides with up to four conjugated alkyne units
Witulski, Bernhard,Schweikert, Torsten,Schollmeyer, Dieter,Nemkovich, Nicolai A.
supporting information; experimental part, p. 2953 - 2955 (2010/08/05)
A set of push-pull ynamides with up to four conjugated triple bonds has been synthesized and the molecular properties of these new carbon rods have been characterised showing effective intramolecular charge transfers and high values for the change of the
Solid-state polymerization of monophenylbutadiyne derivatives
Watanabe, Jun-Ichi,Yokoyama, Harumi,Okada, Shuji,Takaragi, Shigeru,Matsuda, Hiro,Nakanishi, Hachiro
, p. 441 - 447 (2011/11/07)
Solid-state polymerization of phenylbutadiyne derivatives with o-nitro, m-nitro or p-nitro group was investigated. All monomers in bulk crystals could be thermally polymerized to become black suggesting formation of extended pi-conjugation system. However, no regular polydiacetylene structures were confirmed by the structural analysis. Nanocrystals of the m-nitro derivative were prepared, and the different polymerization behavior compared with in the bulk crystals was observed. Copyright Taylor & Francis Group, LLC.
Photochemistry of 1-Aryl-4-(pentamethyldisilanyl)-1,3-butadiynes
Kwon, Jang Hyuk,Lee, Seong Taek,Shim, Sang Chul,Hoshino, Mikio
, p. 1108 - 1114 (2007/10/02)
All the 1-aryl-4-(pentamethyldisilanyl)-1,3-butadiynes (1a-d) synthesized show strong phosphorescence emissions with triplet energies around 218-260 kJ/mol.Laser photolysis of 1-(p-nitrophenyl)-4-(pentamethyldisilanyl)-1,3-butadiyne (1d) in polar solvents results in the formation of an interesting transient (zwitterion species) through intramolecular electron transfer from disilanyl to the nitro group in the triplet excited state.Irradiation of 1d in methanol or ethanol gives 1-(p-nitrophenyl)-1,3-butadiyne (8) through C-Si bond cleavage from the transient.Photolysis of 1-phenyl-4-(pentamethyldisilanyl)-1,3-butadiyne (1a), 1-(1-naphthyl)-4-(pentamethyldisilanyl)-1,3-butadiyne (1b), and 1-(p-methoxyphenyl)-4-(pentamethyldisilanyl)-1,3-butadiyne (1c) in methanol yields photoaddition products (2-7) through silacyclopropene intermediates.
Unusual Structural Distortions Induced by Charge-Transfer Interactions through Conjugated Molecules: Crystal Structures of NH2C6H4(CC)nC6H4NO2 (n=0-3)
Graham, Eva M.,Miskowski, Vincent M.,Perry, Joseph W.,Coulter, Daniel R.,Stiegman, A. E.,et al.
, p. 8771 - 8779 (2007/10/02)
A detailed structure analysis of the series of donor-acceptor molecules O2NC6H4(CC)nC6H4NH2 (n=0-3) has been performed in order to investigate ground-state donor-acceptor interactions through a conjugated framework.The results of the investigation reve
