42969-66-4Relevant articles and documents
Zwitterionic imidazolium salt: An efficient organocatalyst for tetrahydropyranylation of alcohols
Mahato, Sachinta,Chatterjee, Rana,Chakraborty Ghosal, Nirnita,Majee, Adinath
supporting information, p. 1905 - 1915 (2017/10/07)
An aprotic imidazole based zwitterionic-salt, 4-(3-methylimidazolium)-butane sulfonate has been found to be an efficient organocatalyst for tetrahydropyranylation by the reaction of 3,4-dihydro-2H-pyran (DHP) and different aliphatic alcohols as well as various phenolic compounds. The notable advantages of the present method are general applicability to various alcohols, clean reaction, production of no hazardous waste, open air reaction conditions and high yields. The catalyst can be reused without the loss of significant catalytic activity.
Enantioselective construction of branched 1,3-dienyl substituted quaternary carbon stereocenters by asymmetric allenyl Claisen rearrangement
Liu, Yangbin,Hu, Haipeng,Lin, Lili,Hao, Xiaoyu,Liu, Xiaohua,Feng, Xiaoming
supporting information, p. 11963 - 11966 (2016/10/09)
The availability of enantiomerically enriched 1,3-dienyl substituted quaternary stereocenters is highly valuable for the synthesis of complex natural compounds. Despite great advances in the area of construction of alkenyl-substituted types, a general, pr
Pd-catalyzed asymmetric synthesis of N-allenyl amides and their Au-catalyzed cycloisomerizative hydroalkylation: A new route toward enantioenriched pyrrolidones
Boutier, Audrey,Kammerer-Pentier, Claire,Krause, Norbert,Prestat, Guillaume,Poli, Giovanni
supporting information; experimental part, p. 3840 - 3844 (2012/06/15)
Palladium to make them, gold to cyclize them! Gold-catalyzed cycloisomerizative hydroalkylation of N-allenyl amides affords regioselectively 4-vinyl-γ-lactams. This transformation is stereospecific and takes place with a total axis-to-center chirality tra
