77093-14-2Relevant articles and documents
Highly efficient synthesis of unsymmetrical 1,3-diynes from organoalane reagents and alkynyl bromides mediated by a nickel catalyst
Mo, Song,Shao, Xue-Bei,Zhang, Gang,Li, Qing-Han
, p. 27243 - 27247 (2017/07/11)
Highly efficient and simple cross-coupling reactions of alkynylbromides with organoalane reagents for the synthesis of unsymmetrical 1,3-diynes derivatives using Ni(OAc)2 (2-5 mol%)/(o-furyl)3P (4-10 mol%) as a catalyst are reported. Excellent yields (up to 94%) were obtained for a wide range of substrates at rt or 60 °C for 2-3 h in Et2O or toluene.
Cu (I) immobilized on functionalized SBA-15: A recyclable catalyst for the synthesis of 1,3-diynes using terminal alkynes without base
Ma, Zongyan,Wang, Xiaoyu,Wei, Shuoyun,Yang, Honglei,Zhang, Fengwei,Wang, Peng,Xie, Miao,Ma, Jiantai
, p. 24 - 29 (2013/07/26)
A new functionalized SBA-15 catalyst immobilized CuI was successfully prepared, and the catalytic activity was tested in the oxidative homocoupling of terminal alkynes at the absence of base, and good to excellent yields was obtained to get 1,3-diynes without any side product formation in the solution of DMSO. Moreover, the system also allowed the synthesis of unsymmetric 1,3-diynes by cross-coupling of two different terminal alkynes. Finally, the catalyst could be reused for several times without a significant loss of activity.
Strictly "pair"-selective and economical synthesis of conjugated diynes via Pd-catalyzed reaction of terminal alkynes with 1,1-dichloroethylene, elimination with LDA, and subsequent transformations
Qian, Mingxing,Negishi, Ei-Ichi
, p. 412 - 417 (2013/09/06)
Various unsymmetrically substituted conjugated diynes can be synthesized in a completely "pair"-selective manner via Pd-catalyzed reaction of terminal alkynes with 1,1-dichloroethylene in the presence of Pd(PPh3)4 followed by elimina
