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• W2902101966 abstract "Abstract Malononitrile is a useful reagent for multicomponent reactions with hundreds of methods developed. In this paper, we suggest α‐(cyano)‐ o ‐tolunitrile (homophtalonitrile) to work as a vinylogous malononitrile. Thus, a organocatalytic pseudo‐three‐component reaction of homopthalonitrile (2 equiv) and o ‐hydroxybenzaldehyde, leading to the diastereoselective formation of 5‐amino‐12 H ‐chromeno[2,3‐c]isoquinolin‐12‐yl)(cyano)methyl)benzonitriles, was discovered. The possibility to employ other nucleophiles was demonstrated for indoles, and a sequential three‐component reaction of homophtalonitrile, o ‐hydroxybenzaldehyde, and (aza)indole, giving 12‐(1 H ‐Indol‐3‐yl)‐12 H ‐chromeno[2,3‐ c ]isoquinolin‐5‐amines, was developed. The photophysical properties of the synthesized compounds have been studied, revealing high fluorescence quantum yields (42–70 %) for indol‐3‐yl substituted 12 H ‐chromeno[2,3‐ c ]isoquinolin‐5‐amines and reversible fluorescence quenching under acidic conditions." @default.
• W2902101966 created "2018-12-11" @default.
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• W2902101966 date "2018-11-29" @default.
• W2902101966 modified "2023-09-25" @default.
• W2902101966 title "Homophtalonitrile for Multicomponent Reactions: Syntheses and Optical Properties of <i>o</i> -Cyanophenyl- or Indol-3-yl-Substituted Chromeno[2,3-<i>c</i> ]isoquinolin-5-Amines" @default.
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• W2902101966 doi "https://doi.org/10.1002/open.201800207" @default.
• W2902101966 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6331947" @default.
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