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42923-53-5

1-(3',4'-dimethoxyphenyl)-6,7-methylenedioxynaphthalene-2,3-dicarboxylic anhydride is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 42923-53-5 Structure

  • Basic information

    1. Product Name: 1-(3',4'-dimethoxyphenyl)-6,7-methylenedioxynaphthalene-2,3-dicarboxylic anhydride
    2. Synonyms: 1-(3',4'-dimethoxyphenyl)-6,7-methylenedioxynaphthalene-2,3-dicarboxylic anhydride
    3. CAS NO:42923-53-5
    4. Molecular Formula:
    5. Molecular Weight: 378.338
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 42923-53-5.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: N/A
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: 1-(3',4'-dimethoxyphenyl)-6,7-methylenedioxynaphthalene-2,3-dicarboxylic anhydride(CAS DataBase Reference)
    10. NIST Chemistry Reference: 1-(3',4'-dimethoxyphenyl)-6,7-methylenedioxynaphthalene-2,3-dicarboxylic anhydride(42923-53-5)
    11. EPA Substance Registry System: 1-(3',4'-dimethoxyphenyl)-6,7-methylenedioxynaphthalene-2,3-dicarboxylic anhydride(42923-53-5)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 42923-53-5(Hazardous Substances Data)

42923-53-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42923-53-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,9,2 and 3 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 42923-53:
(7*4)+(6*2)+(5*9)+(4*2)+(3*3)+(2*5)+(1*3)=115
115 % 10 = 5
So 42923-53-5 is a valid CAS Registry Number.

42923-53-5Relevant articles and documents

Synthetic experiments in Lignans: Part IX - Thermal and

Anjaneyulu, A. S. R.,Umasundari, P.,Sastry, Ch. V. M.,Satyanarayana, P.

, p. 589 - 595 (2007/10/02)

Thermal and photochemical cyclisations of some dibenzylidenesuccinic anhydrides (Ia to Ic) lead to the formation of a mixture of 1-phenylnaphthalene anhydrides.Blocking one of the cyclisable positions in any one of the two aryl nuclei by bromine atom shows no regiospecificity in directing cyclisation into the non-halogenated aryl nucleus either during thermal or photochemical cyclisation.Cyclisation even into the halogenated aromatic nucleus itself, expected to be stereoselective, is nonstereoselective.The products are preferentially formed by elimination of HBr rather than H2.Incidentally, the naphthalene analogue (VI) of lintetralin, a natural tetralin from Phyllanthus niruri and the respective partial monomethyl ethers (Vm and Vn) have been prepared and characterised by their PMR spectra.

DDQ-Cyclodehydrogenation: Syntheses of 1-Phenylnaphthalenic Lignans

Satyanarayana, P.,Rao, P. Koteswara

, p. 151 - 153 (2007/10/02)

1,2-Diarylidenesuccinic anhydrides (Ia-c) when refluxed with 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ) and dry HCl in anhyd. benzene undergo cyclization to give 1-phenylnaphthalene-2,3-dicarboxylic anhydrides (IIa-d) in 65-70percent yields.Starting from the anhydrides IIc and IId, syntheses of retochinensin (Vc), chinensin (VIc), retrojusticidin-B (Vd) and justicidin-B (VId) have been achieved.

A NEW ROUTE TO 1-PHENYLNAPHTHALENES BY CYCLOADDITION: A SIMPLE AND SELECTIVE SYNTHESIS OF SOME NAPHTHALENE LIGNAN LACTONES

Takano, Seiichi,Otaki, Shizuo,Ogasawara, Kunio

, p. 1659 - 1660 (2007/10/02)

2-(2-Dithianyl)benzhydrols (2 a-c) undergo facile cycloaddition reaction with maleic anhydride under thermal conditions to give 1-phenyl-naphthalenes (7 a-c) in one step.The naphthalenes (7 a-c) have been converted into the naphthalene lignan lactones, (9 a-c) and (10 a-c).

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