126580-12-9Relevant articles and documents
Intramolecular Cyclization of Vinyldiazoacetates as a Versatile Route to Substituted Pyrazoles
Drikermann, Denis,G?rls, Helmar,Kerndl, Valerie,Vilotijevic, Ivan
supporting information, p. 1158 - 1162 (2020/07/20)
Vinyldiazo compounds undergo a thermal electrocyclization to form pyrazoles in yields of up to 95percent. The reactions are operationally simple, use readily available starting materials, require no intervention of a catalyst, and enable the synthesis of mono-, di- A nd tri-substituted pyrazoles. With the ability to produce highly substituted pyrazoles and the flexibility in installing various types of substituents, this method constitutes a new entry to this valuable heterocyclic scaffold and may be of interest to all branches of the chemical industry.
Synthesis of pyridines by carbenoid-mediated ring opening of 2H-azirines
Loy, Nicole S. Y.,Singh, Alok,Xu, Xianxiu,Park, Cheol-Min
supporting information, p. 2212 - 2216 (2013/04/10)
Roaming the range: The title reaction tolerates a wide range of substituents on the resulting pyridine ring using mild reaction conditions (see scheme; esp=α,α,α′,α′-tetramethyl-1,3- benzenedipropionic acid). The formation of the key intermediate is catal
Rhodium(II)-vinylcarbenoid insertion into the Si - H bond. A new stereospecific synthesis of allylsilanes
Landais, Yannick,Planchenault, Denis,Weber, Valery
, p. 9549 - 9552 (2007/10/02)
Rh2(OAc)4 catalysed decomposition of vinyldiazocarbonyl compounds in the presence of organosilanes led stereospecifically to the corresponding allylsilanes in good yields. An asymmetric approach has also been considered as well as the extension of the methodology to the synthesis of other allylic systems.
