82000-92-8

Basic information

• Product Name: 2-Propenoic acid, 2-methyl-, (3-formyl-2-hydroxy-5-nitrophenyl)methyl ester
• CAS NO: 82000-92-8
• Molecular Formula: C12H11NO6
• Molecular Weight: 265.222
• Mol File: 82000-92-8.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: 2-Propenoic acid, 2-methyl-, (3-formyl-2-hydroxy-5-nitrophenyl)methyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Propenoic acid, 2-methyl-, (3-formyl-2-hydroxy-5-nitrophenyl)methyl ester(82000-92-8)
• EPA Substance Registry System: 2-Propenoic acid, 2-methyl-, (3-formyl-2-hydroxy-5-nitrophenyl)methyl ester(82000-92-8)

Safety Data

• Hazardous Substances Data: 82000-92-8(Hazardous Substances Data)

Upstream product

• 97-51-8 5-Nitrosalicylaldehyde 
• 16644-30-7 3-(chloromethyl)-2-hydroxy-5-nitrobenzaldehyde 
• 16631-02-0 methacrylic acid silver salt 

Downstream Products

• 146966-55-4 C₂₄H₂₄N₂O₄S 
• 132221-48-8 3-methacryloxymethyl-2-S-(N,N-dimethylthiocarbamoyl)-5-nitrosalicylaldehyde 
• 132221-49-9 3-methacryloxymethyl-5-nitrothiosalicylaldehyde 
• 132221-47-7 3-methacryloxymethyl-2-O-(N,N-dimethylthiocarbamoyl)-5-nitrosalicylaldehyde 

Relevant articles and documents

INDOLINOSPIROPYRANS WITH TWO POLYMERIZABLE GROUPS

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Crystal and solution structures of photochromic spirobenzothiopyran. First full characterization of the meta-stable colored species

Full elucidation for stable, colorless, and meta-stable colored structures of a new spirobenzothiopyran has been achieved both in the solid state and in a solution. 1′,3′,3′-Trimethyl-6-nitrospiro[(2H)-1-benzothiopyran-2, 2′-indoline] with an ester group as a substituent at the 8-position of 1-sp shows photochromism. The blue-green colored species resulted from UV irradiation (365 nm) in one minute and spontaneously bleaches within one minute in acetone and methanol at 27 °C. UV exposure (365 nm) of 1-sp in methanol for 3 h at room temperature results in the growth of deep blue needlelike single crystals of the open form of spirobenzothiopyran, photomerocyanine 1-pmc, whose structures in the solid state and in solution were obtained unambiguously. The X-ray structural analysis of 1-pmc revealed the molecular structure of the zwitterionic photomerocyanine with s-trans,s-trans conformation. 1-pmc is soluble to polar solvents and thermally returns to 1-sp. In the DMSO solution, 1-pmc is found to return slowly to 1-sp (1-pmc gave only 18% of 1-sp for 30 min at 22 °C). The detailed NMR studies in DMSO-d6 including COSY and NOE techniques as well as isotope labeling of the compound showed the structure with s-trans,s-cis conformation in a solution.

Synthesis and Photochemical Properties of Novel Spirobenzoselenazolinobenzopyrans

5-Methoxy-3-methyl-6'-nitrospirobenzoselenazolinobenzopyrans have been newly prepared and their reversible structure changes induced by light were characterized by spectroscopic studies.Their stable colored-forms were identified as 5-methoxy-3-methylbenzoselenazolenium-2-trans-(5'-nitrostyryl-2'-oxide) being a zwitterionic structure.