42308-47-4

Basic information

• Product Name: 3-(2-methoxyphenyl)-2H-chromen-2-one
• Synonyms: 3-(2-methoxyphenyl)-2H-chromen-2-one
• CAS NO: 42308-47-4
• Molecular Weight: 252.269
• Mol File: 42308-47-4.mol
• Article Data: 7

Chemical Properties

• CAS DataBase Reference: 3-(2-methoxyphenyl)-2H-chromen-2-one(CAS DataBase Reference)
• NIST Chemistry Reference: 3-(2-methoxyphenyl)-2H-chromen-2-one(42308-47-4)
• EPA Substance Registry System: 3-(2-methoxyphenyl)-2H-chromen-2-one(42308-47-4)

Safety Data

• Hazardous Substances Data: 42308-47-4(Hazardous Substances Data)

Upstream product

• 90-02-8 salicylaldehyde 
• 50978-45-5 3-oxobenzo[d]isothiazole-2(3H)-carbaldehyde 1,1-dioxide 
• 7035-02-1 o-Methoxybenzyl chloride 
• 93-25-4 2-methoxyphenylacetic acid 
• 5720-06-9 2-Methoxyphenylboronic acid 
• 91-64-5 coumarin 
• 33567-59-8 (2-methoxy-phenyl)-acetaldehyde 
• 54034-91-2 2-chloro-2-(2-methoxyphenyl)acetaldehyde 
• 7035-03-2 2-methoxy-benzeneacetonitrile 
• 88284-48-4 2-(trimethylsilyl)phenyl trifluoromethanesulfonate 
• 68-12-2 N,N-dimethyl-formamide 

Downstream Products

• 13130-34-2 3-(2-acetoxy-phenyl)-coumarin 
• 42308-40-7 (Z)-2-methoxy-α-(2-methoxyphenyl)cinnamic acid 
• 13130-21-7 3-(2-hydroxyphenyl)-2H-chromen-2-one 

Relevant articles and documents

Zn(II)-Catalyzed One-Pot Synthesis of Coumarins from Ynamides and Salicylaldehydes

A highly efficient and straightforward synthesis of diversely substituted coumarins from ynamides and salicylaldehydes in the presence of Zn(II) catalyst has been developed. The sulfonamide moiety of ynamides was successfully recycled in this process, serving as an effective traceless directing group for high regioselectivity in the bond-forming event. The advantages of this protocol are good functional group tolerance, broad substrate scope, simple and high-yielding reaction, recovery/reuse of the sulfonamides, low catalyst loading of inexpensive catalyst, and, by these merits, a more cost-effective and greener process.

Ph3P/I2-Mediated Synthesis of 3-Aryl-Substituted and 3,4-Disubstituted Coumarins

Ph3P/I2-Et3N-mediated one-pot two-step esterification-cyclization toward 3-aryl coumarins and 3-aryl-4-methylcoumarins is reported. The reaction of a variety of aryl acetic acids containing steric or reactive group with 2-

KMnO4/AcOH-mediated C3-selective direct arylation of coumarins with arylboronic acids

An efficient protocol for KMnO4/AcOH-mediated dehydrogenative direct radical arylation of coumarins with arylboronic acids to afford 3-arylcoumarin derivatives is described. A similar reaction system is also applicable to the 3-arylation of quinolinone derivatives. These KMnO4/AcOH-mediated coupling reactions occur regioselectively at the C3 position of coumarins and quinolinones. Some notable features of this method are high efficiency, moderate to good yield, and a broad group tolerance.