144880-82-0

Basic information

• Product Name: 6-Chloro-2-(3-phthalidenemethylene)chromone
• Synonyms: 6-Chloro-2-(3-phthalidenemethylene)chromone
• CAS NO: 144880-82-0
• Molecular Weight: 324.72
• Mol File: 144880-82-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 6-Chloro-2-(3-phthalidenemethylene)chromone(CAS DataBase Reference)
• NIST Chemistry Reference: 6-Chloro-2-(3-phthalidenemethylene)chromone(144880-82-0)
• EPA Substance Registry System: 6-Chloro-2-(3-phthalidenemethylene)chromone(144880-82-0)

Safety Data

• Hazardous Substances Data: 144880-82-0(Hazardous Substances Data)

Upstream product

• 85-44-9 phthalic anhydride 
• 69693-00-1 6-chloro-2-methyl-4H-chromen-4-one 

Downstream Products

• 2142-03-2 2-p-tolylisoindoline-1,3-dione 
• 2142-01-0 N-benzylphthalimide 
• 105591-51-3 C₁₈H₁₅ClN₂O₃ 
• 144880-70-6 3-Methyl-5-(5-chloro-2-hydroxyphenyl)isoxazole 
• 321-14-2 5-chloro-2-hydroxybenzoic acid 
• 20116-64-7 phthalazin-1,4-dione 
• 144880-72-8 3-Methyl-5-(5'-chloro-2'-hydroxyphenyl)pyrazole 
• 88-99-3 benzene-1,2-dicarboxylic acid 
• 520-03-6 N-phenylphthalimide 
• 69693-00-1 6-chloro-2-methyl-4H-chromen-4-one 

Relevant articles and documents

SOME REACTIONS OF 6-CHLORO-2-METHYL-4H-1-BENZOPYRAN-4-ONE. PART II

6-Chloro-2-methyl-4H-1-benzopyran-4-one (I) gave the isoxazole derivative IIa on reaction with hydroxylamine hydrochloride. The action of hydrazine and phenylhydrazine on I resulted in pyrazole dervatives IIIa and IIIb, respectively. The reactivity of I with ethyloxalate and aromatic nitroso compounds have been investigated. Phthalide VIIIa derived from the chromone I was synthesised and rearranged easily into phthalone IX upon refluxing with alcoholic sodium methoxide. Cleavage of VIIIa with amines and hydrazine hydrate was studied. Thiation of phthalide VIIIa with either Lawesson's reagent or phosphorous pentasulphide yielded the corresponding thione VIIIe.