50683-32-4

Basic information

• Product Name: 1H-2-Benzopyran, 1-bromo-3,4-dihydro-
• Synonyms: 1-Bromoisochromane;1-bromo-isochroman;1-Bromisochroman;1H-2-Benzopyran,1-bromo-3,4-dihydro
• CAS NO: 50683-32-4
• Molecular Formula: C9H9BrO
• Molecular Weight: 213.074
• Mol File: 50683-32-4.mol
• Article Data: 10

Chemical Properties

• CAS DataBase Reference: 1H-2-Benzopyran, 1-bromo-3,4-dihydro-(CAS DataBase Reference)
• NIST Chemistry Reference: 1H-2-Benzopyran, 1-bromo-3,4-dihydro-(50683-32-4)
• EPA Substance Registry System: 1H-2-Benzopyran, 1-bromo-3,4-dihydro-(50683-32-4)

Safety Data

• Hazardous Substances Data: 50683-32-4(Hazardous Substances Data)

Upstream product

• 60-12-8 2-phenylethanol 
• 119391-26-3 C₁₇H₁₉N₂O₃S^(1-)*Na⁽¹⁺⁾ 
• 119367-95-2 2-<2-(Benzyloxy)ethyl>benzaldehyde tosylhydrazone 
• 119367-74-7 2-(2-Methoxyethyl)benzaldehyde tosylhydrazone 
• 119367-92-9 2-<2-(Benzyloxy)ethyl>benzoic acid 
• 119367-93-0 2-<2-(Benzyloxy)ethyl>benzyl alcohol 
• 119367-94-1 2-<2-(Benzyloxy)ethyl>benzaldehyde 
• 119367-78-1 1-Diazomethyl-2-(2-methoxy-ethyl)-benzene 
• 119367-73-6 2-(2-Methoxyethyl)benzaldehyde 
• 119367-72-5 2-(2-Methoxyethyl)benzyl alcohol 
• 4702-34-5 isochroman-1-one 
• 493-05-0 isochromane 
• 7726-95-6 bromine 
• 71-43-2 benzene 

Downstream Products

• 22901-09-3 2-(2-bromoethyl)benzaldehyde 
• 1392407-73-6 N-cyclohexyl-3,4-dihydroisoquinolinium bis(trifluoromethanesulfonyl)imide 
• 1392407-71-4 N-cyclohexyl-3,4-dihydroisoquinolinium bromide 
• 86814-38-2 1-Phenylthio-isochroman-1-carbaldehyd 
• 86814-36-0 1-Methyl-1-phenylthio-isochroman 
• 471925-07-2 3,4-dihydro-1-(4-fluorophenyl)-1H-2-benzopyran 
• 86814-33-7 1-Phenylthio-isochroman 

Relevant articles and documents

Carbohydrate-derived iminium salt organocatalysts for the asymmetric epoxidation of alkenes

A new family of carbohydrate-based dihydroisoquinolinium salts has been prepared and tested for potential as asymmetric catalysts for the epoxidation of unfunctionalized alkene substrates, providing up to 57% ee in the product epoxides.

Cascade condensation, cyclization, intermolecular dipolar cycloaddition by multi-component coupling and application to a synthesis of (±)-crispine A

A general approach for the synthesis of various nitrogen-containing heterocyclic compounds is described using an intermolecular dipolar cycloaddition reaction of azomethine ylides and nitrones. Stabilized and non-stabilized azomethine ylide dipoles or the related nitrones were generated by condensation of 4-, 5- or 6-halo-aldehydes with a readily available amino-acid, amino-ester or hydroxylamine to give an imine followed by cyclization and either decarboxylation or loss of a proton. After intermolecular cycloaddition with an activated dipolarophile, bicyclic or polycyclic (if the ylide dipole and/or dipolarophile contain a ring) amines were produced. A short synthesis of the alkaloid (±)-crispine A was achieved based on this tandem/domino 3-component coupling chemistry.

Functionalized iminium salt systems for catalytic asymmetric epoxidation

A range of dihydroisoquinolinium salts containing alcohol, ether, and acetal functionalities in the nitrogen substituent has been prepared and tested as asymmetric epoxidation catalysts, providing ee's of up to ca. 60%.