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914-03-4

1,2,6,7-Tetraphenyl-4-oxaspiro[2.4]hepta-1,6-dien-5-one is a complex organic compound characterized by its unique molecular structure. It features a spiro ring system, which consists of a seven-membered ring fused to a five-membered oxaspiro ring. The molecule is adorned with four phenyl groups, which are attached to the carbon atoms at positions 1, 2, 6, and 7. The oxo group at position 4 indicates the presence of a carbonyl group, which is a double-bonded oxygen atom. 1,2,6,7-tetraphenyl-4-oxaspiro[2.4]hepta-1,6-dien-5-one is likely to be of interest in the field of organic chemistry, particularly in the synthesis of complex molecular architectures and potentially in materials science due to its rigid and symmetrical structure.

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  • 914-03-4 Structure

  • Basic information

    1. Product Name: 1,2,6,7-tetraphenyl-4-oxaspiro[2.4]hepta-1,6-dien-5-one
    2. Synonyms: 1,2,6,7-tetraphenyl-4-oxaspiro[2.4]hepta-1,6-dien-5-one
    3. CAS NO:914-03-4
    4. Molecular Formula:
    5. Molecular Weight: 412.488
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 914-03-4.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: 1,2,6,7-tetraphenyl-4-oxaspiro[2.4]hepta-1,6-dien-5-one(CAS DataBase Reference)
    10. NIST Chemistry Reference: 1,2,6,7-tetraphenyl-4-oxaspiro[2.4]hepta-1,6-dien-5-one(914-03-4)
    11. EPA Substance Registry System: 1,2,6,7-tetraphenyl-4-oxaspiro[2.4]hepta-1,6-dien-5-one(914-03-4)

  • 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: 914-03-4(Hazardous Substances Data)

914-03-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 914-03-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,1 and 4 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 914-03:
(5*9)+(4*1)+(3*4)+(2*0)+(1*3)=64
64 % 10 = 4
So 914-03-4 is a valid CAS Registry Number.

914-03-4Relevant articles and documents

Silver-catalyzed ring-opening [3+2] annulation of cyclopropenones with amides

Matsuda, Takanori,Tabata, Yuki,Suzuki, Hirotsugu

, p. 19178 - 19182 (2018)

A ring-opening [3+2] annulation reaction between cyclopropenones and amides was developed to produce 5-amino-2-furanones. Insertion of the carbonyl group of an amide to the C-C single bond of a cyclopropenone occurred efficiently in the presence of a catalytic amount of silver(i) triflate.

Copper(i)-promoted synthesis of 4-oxaspiro[2.4]hepta-1,6-dien-5-ones from cyclopropenones

Koerner, Olivia,Gleiter, Rolf,Rominger, Frank

, p. 3259 - 3262 (2009)

Heating of dialkyl-or diarylcyclopropenones at 75 °C in the presence of copper(I) bromide (5 mol%) affords the corresponding 4-oxaspiro[2.4]hepta-1,6- dien-5-ones in good yields.

Ag2O-promoted ring-opening reactions of cyclopropenones with oximes

Gao, Wen-Xia,Huang, Xiao-Bo,Liu, Miao-Chang,Wu, Hua-Yue,Yang, Ye-Fei,Zhou, Yun-Bing

, p. 5822 - 5825 (2020)

Ag2O-promoted ring-opening reactions of cyclopropenones with oximes is disclosed in this work, providing a direct route to 1,3-oxazinones. This method highlights a new reactivity of cyclopropenones which undergo 1,4-addition with oximes followed by β-carbon elimination to in situ generate a α-carbonyl ketene intermediate. This journal is

Synthesis of 2-Alkenyl-4H-3,1-Benzoxazin-4-Ones through HFIP-Mediated Decarboxylative [4+2]-Annulation of Isatoic Anhydrides with Cyclopropenones under Silver Catalysis

Yang, Mengqi,Wang, Jixin,Lv, Weiwei,Ba, Dan,Cheng, Guolin,Wang, Lianhui

, p. 4085 - 4090 (2021)

We herein describes an HFIP-mediated [4+2]-cycloaddition reaction from simple and easily available isatoic anhydrides and cyclopropenones under silver catalysis. This transformation involves the tandem decarboxylative esterification, intermolecular additi

The Reaction of Tetrachlorocyclopropene with Trimethylsiloxybuta-1,3-dienes: A One-Pot Diels-Alder Route to Trichlorotropones and Trichlorotropolones

Banwell, Martin G..,Knight, John H.

, p. 1861 - 1868 (2007/10/02)

One-pot syntheses of the trichlorinated troponoid compounds (8), (10), (12) and (18) have been achieved by reacting tetrachlorocyclopropene (5) with various trimethylsiloxybuta-1,3-dienes.

4H-3,1-Benzoxathiines from Benzothiete and Carbonyl Compounds

Schmidt, Michael,Meier, Herbert,Niedermann, Hans-Peter,Mengel, Rudolf

, p. 1143 - 1148 (2007/10/02)

The o-quinoid 8-? electron system 2, generated by thermal ring opening of benzothiete (1) undergoes cycloaddition reactions with electron-deficient carbonyl compounds 3.In accordance with the frontier orbital theory, 4H-3,1-benzoxathiines (4) are obtained in a regioselective manner.

1,1',2,2'-Tetrathiafulvalenes, IV. - On the Reactions of Cyclopropen(thio)nes with 1,2-Dithiole Compounds: Thienothiophenes, Thienofurans, 4H-Furopyrroles, 1,2-Dithiole-3-(thi)ones, and other Heterocycles Containing Sulfur

Behringer, Hans,Meinetsberger, Eike

, p. 315 - 341 (2007/10/02)

4,5-Disubstituted 1,2-dithiole-3-thiones (1,2-trithiones) 1 react with 2,3-diphenylcyclopropenethione (2a) to give by elimination of two atoms sulfur thienothiophenes 5.The reaction of 1a with 2a yields in addition tetraphenylthieno-1,2-dithiin (6a). 1,2-Trithiones react with 2,3-diarylcyclopropenones 7 (R3=Aryl) to give the corresponding thienofurans 8 and 1,2-dithiole-3-ones 9. - In 4-position unsubstituted 5-aryl-1,2-trithiones and 2,3-diarylcyclopropenones 7 (R3=Aryl) react in a more complex manner.In the reaction of 4,5-disubstituted 3-phenylimino-1,2-dithiole-3-thiones 18 with 7 (R3=Aryl) 4H-Furopyrroles 19 are formed. - Furthermore it will be reported on conversions of 5-phenyl-3H-1,2,4-dithiazole-3-thione (24), 2-benzyl-4-methyl-3-phenyl-1,2-thiazole-5(2H)-thione (27a), and 2-benzyl-4-phenyl-1,2-thiazole-5(2H)-thione (27b) in the reactions with the cyclopropenones 7d respective 7a.

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