57336-16-0

Upstream product

• 104-94-9 4-methoxy-aniline 
• 17422-74-1 3-Formylchromone 

Downstream Products

• 65160-31-8 4-chloro-2-(4-methoxy-phenyl)-2H-chromeno[3,2-c]pyridine-3,10-dione 
• 143947-54-0 3-(N-Benzoylamino)-N-p-methoxyphenyl-3-methyl-4-(4-oxobenzopyran-3-yl)azetidin-2-one 
• 115848-50-5 3-[4-(4-Methoxy-phenyl)-3-phenyl-4,5-dihydro-[1,2,4]oxadiazol-5-yl]-chromen-4-one 
• 113326-65-1 1-(4-Bromo-phenyl)-4-(4-methoxy-phenyl)-5-(4-oxo-4H-chromen-3-yl)-4,5-dihydro-1H-[1,2,4]triazole-3-carboxylic acid ethyl ester 
• 113326-71-9 6-(4-Bromo-phenyl)-9-(4-methoxy-phenyl)-11-oxo-5a,6,9,11-tetrahydro-5-oxa-6,7,9-triaza-cyclohepta[b]naphthalene-8-carboxylic acid ethyl ester 
• 113326-67-3 4-(4-Methoxy-phenyl)-5-(4-oxo-4H-chromen-3-yl)-1-p-tolyl-4,5-dihydro-1H-[1,2,4]triazole-3-carboxylic acid ethyl ester 
• 113326-73-1 9-(4-Methoxy-phenyl)-11-oxo-6-p-tolyl-5a,6,9,11-tetrahydro-5-oxa-6,7,9-triaza-cyclohepta[b]naphthalene-8-carboxylic acid ethyl ester 
• 113326-66-2 3-[5-Acetyl-2-(4-bromo-phenyl)-4-(4-methoxy-phenyl)-3,4-dihydro-2H-[1,2,4]triazol-3-yl]-chromen-4-one 
• 113326-72-0 8-Acetyl-6-(4-bromo-phenyl)-9-(4-methoxy-phenyl)-6,9-dihydro-5aH-5-oxa-6,7,9-triaza-cyclohepta[b]naphthalen-11-one 
• 113326-64-0 3-[5-Acetyl-4-(4-methoxy-phenyl)-2-p-tolyl-3,4-dihydro-2H-[1,2,4]triazol-3-yl]-chromen-4-one 
• 113326-70-8 8-Acetyl-9-(4-methoxy-phenyl)-6-p-tolyl-6,9-dihydro-5aH-5-oxa-6,7,9-triaza-cyclohepta[b]naphthalen-11-one 
• 143947-53-9 3-(N-p-Anisoylamino)-N-p-methoxyphenyl-3-methyl-4-(4-oxobenzopyran-3-yl)azetidin-2-one 
• 71809-35-3 4-(4-methoxy-phenyl)-4,11a-dihydro-chromeno[3,2-f][1,4]thiazepine-3,6-dione 

Relevant academic research and scientific papers

Thermal reactions involving 1-azadienes and allenic esters-(II):1a reactions of 3-(N-aryliminomethyl)chromones with allenic esters-tandem reorganization of [2+2] cycloadducts to novel compounds

Thermal reactions of 3-(N-aryliminomethyl)chromones (4a-d) with ethyl 2,3-butadienoate (5a) and ethyl 4-phenyl-2,3-butadienoate (5b), on refluxing in dry benzene, afford novel compounds 6a-e, apparently, derived from tandem reorganization of initially formed [2+2] cycloadducts. However, reaction of 4a,d with ethyl 2,3-pentadienoate (5c, R = CH3) under similar condition follows a different course yielding novel molecules 7a,d and 8a,d. Plausible mechanistic rationale for the formation of new molecules is proffered.

Calcium Chloride/HCl an efficient co-catalytic system for synthesis of 3-(Aryliminomethyl)-Chromones under sonochemical condition

(Formula presented) Calcium Chloride and one drop concentrated HCl has been found to be an efficient catalyst for the synthesis of 3-(Aryliminomethyl)-Chromones (3) from 3-Formylchromones (1) and amines (2) under ultrasound condition. The reaction under ultrasound condition proceeds in high yields at ambient temperature in a short time. A variety of imines have been synthesized by varying substituent on aromatic amines in good yields.

Indium triflate: A new catalyst for (4 + 2)-cycloaddition of chromone Schiff's bases

Indium triflate was introduced as a new catalyst for (4+2)-cycloaddition of chromone Schiff's bases. 3,4-Dihydro-2H-pyran reacted with a variety of chromone Schiff's bases in the presence of indium and scandium triflates at ambient temperature and pressur

Studies on Chromone Derivatives. A Direct and Efficient One-pot Synthesis of 4-Chromone-linked 3-(N-Acylamino)azetidin-2-ones from Imines and N-Acylalanine

Chlorosulfonylmethylene(dimethyl)ammonium chloride 1 is found to be an efficient cyclodehydrating agent for the one-pot synthesis of various novel chromone-linked azetidin-2-ones 6 via cycloaddition reactions of 3-(arylaminomethyl)chromones 5 with in situ

STUDIES IN CHROMONE DERIVATIVES: CYCLOADDITION REACTIONS OF 4-OXO-4H-1-BENZOPYRAN-3-CARBOXALDEHYDE IMINES WITH BENZONITRILE OXIDE AND NITRILIMINE OF 4-OXO-4H-1-BENZOPYRAN-3-CARBOXALDEHYDE WITH ALKENES

The chromone imines 1 and benzonitrile oxide reacted regiospecifically to yield Δ2-1,2,4 oxadiazolinyl chromones 2 in good yields.Also the preparation of a novel dipole 6 derived from 3-formylchromone and its cycloaddition reactions with a vari

STUDIES ON CHROMONE DERIVATIVES. NOVEL 1,3 DIPOLAR CYCLOADDITIONS OF 4-OXO-1-BENZOPYRAN-3-CARBALDEHYDE IMINES AND IMINE OXIDES

The chromone imines (2) and nitrile imines (4) reacted smoothly to yield the novel 1,2,4-triazolinyl- and triazepinyl-chromones, (6) and (5) respectively.The facile preparation of nitrones of chromones and their selected reactions with a variety of alkenes to obtain isoxazolidinylchromones (12) is also described.