1225432-54-1Relevant articles and documents
Vanadium-Catalyzed Synthesis of Geometrically Defined Acyclic Tri- and Tetrasubstituted Olefins from Propargyl Alcohols
Trost, Barry M.,Tracy, Jacob S.
, p. 1584 - 1594 (2019/02/05)
A highly selective formation of geometrically defined acyclic tri- and tetrasubstituted alkenes from inexpensive and readily available propargyl alcohols is described. Through vanadium oxo catalysis, tri- and tetrasubstituted α-chloro-, bromo-, and iodo-e
"Silver effect" in gold(I) catalysis: An overlooked important factor
Wang, Dawei,Cai, Rong,Sharma, Sripadh,Jirak, James,Thummanapelli, Sravan K.,Akhmedov, Novruz G.,Zhang, Hui,Liu, Xingbo,Petersen, Jeffrey L.,Shi, Xiaodong
scheme or table, p. 9012 - 9019 (2012/07/02)
Clear experimental evidence from X-ray photoelectron spectroscopy and 31P NMR spectroscopy has been obtained for the first time to confirm that the combination of Ag+ cation with [L-Au]+ results in the formation of different complexes in solution. Re-evaluation of literature-reported gold-catalyzed reactions revealed a significant difference in the reactivities with and without silver. In extreme cases (more than "rare"), the conventional [L-Au]+ catalysts could not promote the reaction without the presence of silver. This investigation has therefore revealed a long-overlooked "silver effect" in gold catalysis and should lead to revision of the actual mechanism.
Efficient synthesis of e -α-haloenones through chemoselective alkyne activation over allene with triazole-Au catalysts
Wang, Dawei,Ye, Xiaohan,Shi, Xiaodong
supporting information; experimental part, p. 2088 - 2091 (2010/07/03)
Figure presented The E-α-haloenones were prepared through a triazole-Au complex (TriA-Au) catalyzed propargyl acetate rearrangement and sequential allene halogenation. The reactions proceeded with only 1% catalyst loading, giving the challenging kinetic p