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119930-16-4

(E)-4-(Triphenyl-λ5-phosphanylidene)-pent-2-enedioic acid diethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 119930-16-4 Structure

  • Basic information

    1. Product Name: (E)-4-(Triphenyl-λ5-phosphanylidene)-pent-2-enedioic acid diethyl ester
    2. Synonyms: (E)-4-(Triphenyl-λ5-phosphanylidene)-pent-2-enedioic acid diethyl ester
    3. CAS NO:119930-16-4
    4. Molecular Formula:
    5. Molecular Weight: 446.483
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 119930-16-4.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: (E)-4-(Triphenyl-λ5-phosphanylidene)-pent-2-enedioic acid diethyl ester(CAS DataBase Reference)
    10. NIST Chemistry Reference: (E)-4-(Triphenyl-λ5-phosphanylidene)-pent-2-enedioic acid diethyl ester(119930-16-4)
    11. EPA Substance Registry System: (E)-4-(Triphenyl-λ5-phosphanylidene)-pent-2-enedioic acid diethyl ester(119930-16-4)

  • 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: 119930-16-4(Hazardous Substances Data)

119930-16-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 119930-16-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,9,3 and 0 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 119930-16:
(8*1)+(7*1)+(6*9)+(5*9)+(4*3)+(3*0)+(2*1)+(1*6)=134
134 % 10 = 4
So 119930-16-4 is a valid CAS Registry Number.

119930-16-4Relevant articles and documents

Phosphonium ylide-catalyzed cyclotrimerization of ethyl propynoate

Labuschagne, A. Johan H.,Malherbe, Johan S.,Meyer, Cornelius J.,Schneider, David F.

, p. 297 - 304 (2002)

The cyclotrimerization of ethyl propynoate (2) to yield aromatic triesters is shown to proceed via consecutive [2 + 2] cycloadditions of ethoxycarbonylmethylenetriphenylphosphonium ylide (1) to three moles of (2), followed by cyclization and elimination o

MECHANISTIC ASPECTS OF THE REACTION OF SOME PHOSPHONIUM YLIDES WITH ALKYL PROPYNOATES

Barluenga, Jose,Lopez, Fernando,Palacios, Francisco,Sanchez-Ferrando, Francisco

, p. 381 - 384 (2007/10/02)

The reaction of alkoxycarbonylmethylentriphenylphosphonium ylides 7 with alkyl propynoates 6 in dichloromethane proceeds via cycloaddition rather than Michael addition, to lead to stabilised phosphonium ylides.

SYNTHESIS AND FRAGMENTATION-CONDENSATION REACTIONS OF 1,3-DIETHOXYCARBONYLALLYLIDENETRIPHENYLPHOSPHONIUM YLIDE

Labuschagne, A. Johan H.,Schneider, David F.

, p. 4135 - 4138 (2007/10/02)

Alkylidenephosphonium ylides with ethoxycarbonyl substituents in the α-position fragment in a retro-Michael fashion during condensation with aldehydes.

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