62051-68-7Relevant academic research and scientific papers
meso- and rac-2,7-Diphenyl-3,5-octadiyne-2,7-diol, C20H18O2
Lord, M. D.,Winter, R. E. K.,Rath, N. P.
, p. 116 - 120 (1994)
The stereoisomeric forms of 2,7-diphenyl-3,5-octadiyne-2,7-diol (I) have been identified; meso- and rac-(I) exhibit different crystal packing, reflecting very different hydrogen-bonding networks.
Cu(ii) complex heterogenized on SBA-15: A highly efficient and additive-free solid catalyst for the homocoupling of alkynes
Narani, Anand,Marella, Ravi Kumar,Ramudu, Pochamoni,Rama Rao, Kamaraju Seetha,Burri, David Raju
, p. 3774 - 3781 (2014/01/06)
A Cu(ii) complex has been heterogenized on SBA-15 by functionalization of SBA-15 with (N1-propylethane-1,2-diamine) triethoxysilane (NN-SBA-15) followed by anchoring of 2-pyridinecarboxaldehyde through Schiff's base formation between the terminal -NH
Copper powder-mediated homocoupling reactions of iodoacetylenes to synthesize symmetrical 1,3-butadiynes
Xue, Song,Meng, Ling-Guo,Guo, Qing-Xiang
, p. 2243 - 2251 (2008/09/21)
A new route to synthesize symmetrical 1,3-butadiynes from iodoacetylenes in the presence of copper powder and pyridine was developed. Moderate to excellent yields were obtained through an efficient and simple process involving the copper powder without any further activation. Copyright Taylor & Francis Group, LLC.
Ligand- and base-free synthesis of 1,3-diynes catalyzed by low loading of heterogeneous Pd/C and CuI
Kurita, Takanori,Abe, Masami,Maegawa, Tomohiro,Monguchi, Yasunari,Sajiki, Hironao
, p. 2521 - 2524 (2008/02/13)
A facile and environmentally friendly synthetic method for a variety of symmetrical 1,3-diyne derivatives based on the Pd/C-CuI-catalyzed homocoupling reaction of terminal alkynes has been developed. The reaction was efficiently catalyzed by the extremely
PMHS-mediated couplings of alkynes or benzothiazoles with various electrophiles: Application to the synthesis of (-)-akolactone A
Gallagher, William P.,Maleczka Jr., Robert E.
, p. 6775 - 6779 (2007/10/03)
Polymethylhydrosiloxane (PMHS) in combination with CsF facilitates the cross-coupling of alkynes or benzothiazoles with an array of vinyl, styryl, and aryl halides or nonaflates as well as acid chlorides. Experimental and spectroscopic evidence indicates that these reactions involve the in situ generation of a siloxyl intermediate. These cross-couplings proceed relatively quickly at room temperature and under amine-free conditions. To demonstrate the applicability of the method, a total synthesis of the cyctotoxic butanolide (-)-akolactone A was carried out.
Synthesis of conjugated diallenes by double [2,3]-sigmatropic rearrangement of conjugated diyne trichloromethanesulfenates
Raj, C. Paul,Braverman
, p. 2629 - 2637 (2007/10/03)
The preparation of several 2,4-diyne-1,6-diols and their esterification with trichloromethanesulfenyl chloride is described. The thus generated bis- propargylic trichloromethanesulfenates undergo spontaneous double [2,3]- sigmatropic rearrangement which leads to the formation of conjugated diallenic trichloromethyl sulfoxides in good to excellent yields.
Oxidative Coupling Reaction of Acetylene Compounds in the Solid State
Toda, Fumio,Tokumaru, Yoshihisa
, p. 987 - 990 (2007/10/02)
Oxidative coupling of acetylene compound with cupric salt in the solid state was found to proceed efficiently and selectively.The coupling reaction of α,ω-diacetylenes in the solid state gave the linear oligomers in contrast with the formation of the cyclic products in the solution reaction.
