Synthesis of Substituted and Unsubstituted 2,4‐Diaryl‐5‐oxo‐5,6,7,8‐tetrahydro‐2‐chromens.

Ahmed, Monzur Morshed; Ahmed, Salman; Romman, Ukr; Touchy, Abeda S.; Badal, Mizanur Rahman; Hossain, Mohammad Awlad; Uddin, Md. Khabir

doi:10.1002/chin.200528147

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“…Reaction of 1 with cyclohexane-1,3-diones produced 2,4-diaryl-5-oxo-5,6,7,8tetrahydro-2-chromenes 13a, b. [53] Similarly, acetoacetanilide and acetylacetone reacted with chalcones 1 to afford cyclohexenone derivatives 14 and 15, respectively [49] (Scheme 3). Epoxidation of chalcones 1 with urea-hydrogen peroxide (UHP) under ultrasound irradiation gave oxirane derivatives 16 [54] (Scheme 3).…”

Section: Reactivity Of Chalcone Derivativesmentioning

confidence: 99%

Arylidene Derivatives as Synthons in Heterocyclic Synthesis

El‐Gohary¹

2014

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This review describes the synthetic procedures for the preparation of arylideneacetophenones, arylidenecycloalkanones, 2-arylidene-1-indanones, 2-arylidene-1-tetralones, 2-arylidene-1-benzosuberones, aurones, 1-thioaurones, 3-arylidene-4-chromanones, 3-arylidene-1-thio-4-chromanones, 3-arylideneflavanones, 3-arylidene-1-thioflavanones, arylideneanilines, arylidenemalononitriles, diethyl arylidenemalonates, ethyl arylidenecyanoacetates, arylidenecyanoacetamides, 5arylidene derivatives of barbituric and thiobarbituric acids, arylidene derivatives of Meldrum's acid and arylidene derivatives of dimedone. Also, it demonstrates the reactivity of these arylidene derivatives in heterocyclic synthesis with emphasis on the most recent findings. Some of these are the α,β-enones, víz. aurones and 3-arylidene-4-chromanones belong to the natural products. The others are synthetic substances which are convenient and important intermediates for the synthesis of a variety of useful and novel heterocyclic systems.

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Section: Reactivity Of Chalcone Derivativesmentioning

confidence: 99%

Arylidene Derivatives as Synthons in Heterocyclic Synthesis

El‐Gohary¹

2014

OALib

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Synthesis of Substituted and Unsubstituted 2,4‐Diaryl‐5‐oxo‐5,6,7,8‐tetrahydro‐2‐chromens.

Cited by 1 publication

References 0 publications

Arylidene Derivatives as Synthons in Heterocyclic Synthesis

Arylidene Derivatives as Synthons in Heterocyclic Synthesis

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