Add to ORKG618-621-Alkyl chalcones 3a-d on acid catalyzed cyclization give a mixture of (±) trans and (±) cis 2-aryl-3-alkylchroman-4-ones. cis 4a-d are converted to trans 5a-d by epimerization with dil. alkali. a-Aryl chalcones 3e-h on acid catalyzed cyclization give (±) trans 2,3-diaryl-chroman-4-ones 5e-h. On NaBH4 reduction 5a-h give (±) 2,3-trans-3,4-trans-2-aryl-3-alkyl/aryl- chroman-4-ols 6a-h
Synthesis of Chromones. Part Ill. Condensation of β-Naphthol with Alkyl Acetoacetic Esters
A convenient synthesis of chroman-3-one has been described and the chemistry of the compound studied
Synthesis of Chromones. Part Ill. Condensation of β-Naphthol with Alkyl Acetoacetic Esters
<div><p></p><p>4-Aryl chromanes are synthesized from 4-Aryloxy chromanes via a rearrangement methodo...
3-Acylchromones and 3-acylflavones, readily available by acylation of 2′-hydroxydibenzoylmethane wit...
The synthesis of a range of novel 2,2-disubstituted chroman-4-ones has been accomplished by the pyrr...
Treatment of acetals derived from ortho substituted benzaldehyde chromium tricarbonyl complexes and ...
Treatment of acetals derived from o-tolualdehyde chromium tricarbonyl and o-anisaldehyde chromium tr...
A range of 2-substituted, symmetrically and unsymmetrically 2,2- disubstituted and 2-spiro-annulated...
A one pot synthesis of a number of 4-chlorochromenes and chroman-4-ones was achieved from γ-chloropr...
The stereocontrolled reduction of 3-sulfonyl chromen-4-ones by two synthetic methods, NaBH<sub>4</su...
Several chroman-4-ones were prepared by the pyrrolidine catalysed reaction of 2'-hydroxyacetophenone...
The synthesis of 2,3-disubstituted pyrroles via TMSOTf-assisted cyclization reaction of 3,5,5-trimet...
The last chapter describes an extension of this cyclisation reaction enabling the synthesis of homoc...
Tandem reactions involving Rh-catalyzed intermolecular hydroacylations of alkynes with salicylaldehy...
Synthesis of Chromones. Part Ill. Condensation of β-Naphthol with Alkyl Acetoacetic Esters
A convenient synthesis of chroman-3-one has been described and the chemistry of the compound studied
Synthesis of Chromones. Part Ill. Condensation of β-Naphthol with Alkyl Acetoacetic Esters
<div><p></p><p>4-Aryl chromanes are synthesized from 4-Aryloxy chromanes via a rearrangement methodo...
3-Acylchromones and 3-acylflavones, readily available by acylation of 2′-hydroxydibenzoylmethane wit...
The synthesis of a range of novel 2,2-disubstituted chroman-4-ones has been accomplished by the pyrr...
Treatment of acetals derived from ortho substituted benzaldehyde chromium tricarbonyl complexes and ...
Treatment of acetals derived from o-tolualdehyde chromium tricarbonyl and o-anisaldehyde chromium tr...
A range of 2-substituted, symmetrically and unsymmetrically 2,2- disubstituted and 2-spiro-annulated...
A one pot synthesis of a number of 4-chlorochromenes and chroman-4-ones was achieved from γ-chloropr...
The stereocontrolled reduction of 3-sulfonyl chromen-4-ones by two synthetic methods, NaBH<sub>4</su...
Several chroman-4-ones were prepared by the pyrrolidine catalysed reaction of 2'-hydroxyacetophenone...
The synthesis of 2,3-disubstituted pyrroles via TMSOTf-assisted cyclization reaction of 3,5,5-trimet...
The last chapter describes an extension of this cyclisation reaction enabling the synthesis of homoc...
Tandem reactions involving Rh-catalyzed intermolecular hydroacylations of alkynes with salicylaldehy...
Synthesis of Chromones. Part Ill. Condensation of β-Naphthol with Alkyl Acetoacetic Esters
A convenient synthesis of chroman-3-one has been described and the chemistry of the compound studied
Synthesis of Chromones. Part Ill. Condensation of β-Naphthol with Alkyl Acetoacetic Esters