157968-59-7

Basic information

• Product Name: (S)-3,4-dihydro-2-phenyl-2H-1-benzopyran
• Synonyms: (S)-3,4-dihydro-2-phenyl-2H-1-benzopyran
• CAS NO: 157968-59-7
• Molecular Weight: 210.276
• Mol File: 157968-59-7.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: (S)-3,4-dihydro-2-phenyl-2H-1-benzopyran(CAS DataBase Reference)
• NIST Chemistry Reference: (S)-3,4-dihydro-2-phenyl-2H-1-benzopyran(157968-59-7)
• EPA Substance Registry System: (S)-3,4-dihydro-2-phenyl-2H-1-benzopyran(157968-59-7)

Safety Data

• Hazardous Substances Data: 157968-59-7(Hazardous Substances Data)

Upstream product

• 95-56-7 2-hydroxybromobenzene 
• 100306-33-0 (1R)-3-chloro-1-phenylpropanol 
• 93514-42-2 2-phenylchromene 
• 98-86-2 acetophenone 
• 254-04-6 2H-chromene 
• 494-13-3 2-phenyl-4H-chromene 
• 127073-84-1 (R)-3-iodo-1-phenyl-1-propanol 
• 319924-80-6 (S)-1-bromo-2-(3-chloro-1-phenylpropoxy)-benzene 

Downstream Products

• 487-26-3 (2S)-flavanone 
• 20902-95-8 (2S,4R)-(+)-4-hydroxyflavan 
• 51196-83-9 (2S,4S)-(+)-cis-4-hydroxyflavan 

Relevant articles and documents

A stereocontrolled route to 2-substituted chromans

A two-step synthesis of 2-substituted chromans of high enantiomeric purity is described. Mitsunobu reaction of homochiral halopropanols 10 with 2-bromophenol (9), followed by treatment with n-butyllithium under Parham cycloalkylation conditions generates

Ruthenium-NHC-catalyzed asymmetric hydrogenation of flavones and chromones: General access to enantiomerically enriched flavanones, flavanols, chromanones, and chromanols

Two to four! Readily available flavones and chromones were efficiently converted into four valuable chiral classes of O-heterocycles - flavanones, chromanones, flavanols, and chromanols - by means of an enantioselective Ru/NHC-catalyzed hydrogenation process (see scheme; NHC=N-heterocyclic carbene, PCC=pyridinium chlorochromate). Copyright

Asymmetric dehydration of β-hydroxy esters and application to the syntheses of flavane derivatives

Catalytic asymmetric dehydration of β-aryl or alkyl substituted β-hydroxy esters via kinetic resolution has been investigated. A brief survey of 10 different chiral ligands is conducted to examine the effects of chiral ligand structure on selectivity of t