26863-15-0Relevant articles and documents
Connecting a carbonyl and a π-conjugated group through a: P-phenylene linker by (5+1) benzene ring formation
Morofuji, Tatsuya,Kinoshita, Hanae,Kano, Naokazu
supporting information, p. 8575 - 8578 (2019/07/25)
A benzene ring was formed to connect a carbonyl group of various methyl ketones with a π-conjugated group through a p-phenylene linker. Methyl ketones and streptocyanines were used as the C1 and C5 sources, respectively, in the (5+1) annulation, which could form donor-π-acceptor molecules.
Synthesis of n-substituted carbonylamino-1,2,3,6-tetrahydropyridines as potential anti-inflammatory agents
Ghaffari, Mohammad A.,Ardley, Tiffany W.,Gangapuram, Madhavi,Redda, Kinfe K.
experimental part, p. 2615 - 2623 (2011/08/07)
Several N-substituted carbonyl/sulfonylamino-1,2,3,6-tetrahydropyridines (5a-i and 9a, b) were synthesized via sodium borohydride reduction of the corresponding N-substitutedimino-pyridinium ylides (4a-i and 8a, b) in absolute ethanol. Taylor &FrancisGroup, LLC.
Stereocontrolled synthesis of Z-dienes via an unexpected pericyclic cascade rearrangement of 5-amino-2,4-pentadienals
Steinhardt, Sarah E.,Silverston, Joel S.,Vanderwal, Christopher D.
, p. 7560 - 7561 (2008/12/22)
Donor-acceptor dienes known as Zincke aldehydes, which derive readily from the ring-opening reactions of pyridinium salts with secondary amines, undergo a fascinating thermal rearrangement reaction to afford Z-α,β,γ,δ-unsaturated amides with excellent stereoselectivity. Efficient, stereocontrolled access to Z-trisubstituted alkenes with two different substitution patterns is possible in three steps beginning with the appropriately substituted pyridine derivative. Preliminary studies have shown that both the amide and the monosubstituted alkene termini can be selectively functionalized. Ease of access, generality of scope, and facile product manipulation render this process attractive for the synthesis of complex polyenes. Copyright
