52607-59-7

Basic information

• Product Name: 1',3',3'-trimethyl-6-phenylazo-1',3'-dihydro-spiro[chromene-2,2'-indole]
• Synonyms: 1',3',3'-trimethyl-6-phenylazo-1',3'-dihydro-spiro[chromene-2,2'-indole]
• CAS NO: 52607-59-7
• Molecular Weight: 381.477
• Mol File: 52607-59-7.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 1',3',3'-trimethyl-6-phenylazo-1',3'-dihydro-spiro[chromene-2,2'-indole](CAS DataBase Reference)
• NIST Chemistry Reference: 1',3',3'-trimethyl-6-phenylazo-1',3'-dihydro-spiro[chromene-2,2'-indole](52607-59-7)
• EPA Substance Registry System: 1',3',3'-trimethyl-6-phenylazo-1',3'-dihydro-spiro[chromene-2,2'-indole](52607-59-7)

Safety Data

• Hazardous Substances Data: 52607-59-7(Hazardous Substances Data)

Upstream product

• 62-53-3 aniline 
• 118-12-7 1,3,3-Trimethyl-2-methyleneindoline 
• 27147-03-1 5-(phenylazo)salicylaldehyde 

Relevant articles and documents

Stereoselective formation of dicondensed spiropyran product obtained from the reaction of excess Fischer base with salicylaldehydes: First full characterization by X-ray crystal structure analysis of a DC·acetone crystal

The structure and stereochemistry of the dicondensed spiropyran product (DC-1, X=COOH) obtained from reaction of excess Fischer base with substituted salicylaldehydes has been fully assigned as C with (8R, 10R) configuration on the basis of single crystal X-ray diffraction analysis. The stereoselective formation of DC molecules indicates that the most plausible mechanism for DC formation involves dehydration of the cyclic carbinol intermediate with the aid of intramolecular H-bonding via transition structure TS1 ?.

Dicondensed indolinobenzospiropyrans as precursors of thermo- and photochromic spiropyrans. Part II: Assignment of 1H and 13C NMR spectra

The 1H and 13C NMR spectra of dicondensed indolinobenzospiropyrans as precursors of thermo- and photochromic spiropyrans, DC1-DC5, were completely assigned. Especially, the 1H assignment and coupling characteristics of the diastereotopic protons at the carbon-3 position of the benzopyran rings were achieved by conducting 1H-1H COSY and nOe experiments. The dihedral angles (θ1, θ2 and θ3) calculated from the experimental values of the vicinal coupling constants (3J) of DC5 are in good agreement with the observed values in the solid state. All of the carbons in the DC dye molecules were investigated through a combination of heteronuclear 2D-shift correlation spectroscopy (HETCOR) and DEPT135. Copyright