29427-70-1Relevant articles and documents
Compound as potassium channel modulator
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, (2018/07/30)
The invention relates to a compound as a potassium channel modulator, which is a compound of a formula (I) or a pharmaceutically acceptable salt thereof. The compound or the pharmaceutically acceptable salt thereof is effective for curing and preventing diseases and symptoms influenced by the activity of potassium ion channels.
Photochemical preparation of highly functionalized 1-indanones
Wessig, Pablo,Glombitza, Clemens,Mueller, Gunnar,Teubner, Janek
, p. 7582 - 7591 (2007/10/03)
A series of o-alkylphenyl alkyl ketones 1 were synthesized by different methods. The presence of a leaving group X adjacent to the carbonyl group is the special peculiarity of these ketones. Upon irradiation the keto carbonyl group of these compounds undergoes an n-π* excitation followed by a 1,5-hydrogen migration from the o-alkyl substituent to the carbonyl oxygen atom. The thus formed 1,4-diradicals are subject to a very rapid elimination of acid HX, giving 1,5-diradicals. We called this process spin center shift. After intersystem crossing these diradicals cyclize to 1-indanones 20 in good yields. Depending on the solvent and on substituents, o-alkoxyalkyl ketones 22 or benzo-[c]furanes 21 are obtained as byproducts. The mechanism of the cyclization was elucidated by quantum chemical calculations and kinetic measurements.
A general route to the synthesis of 1,5-methano- and 1,5-ethano-2, 3,4,5-tetrahydro-1h-3-benzazepines
O'Donnell, Christopher J.,Singer, Robert A.,Brubaker, Jason D.,McKinley, Jason D.
, p. 5756 - 5759 (2007/10/03)
A general approach to preparing 1,5-methano-(1) and l,5-ethano-2,3,4,5- tetrahydro-lff-3-benzazepine (2) is discussed. This strategy involves converting an indanone or tetralone (4) to a cyanohydrin (3) which is subjected to hydrogenolysis followed by lac