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263-06-9

6H,12H-Dibenzo[b,f][1,5]dithiocin is a chemical compound with the molecular formula C12H8S2. It is a member of the dibenzothiophene family, characterized by a fused benzene ring system with sulfur atoms incorporated into the structure. This particular compound features a dithiophene ring, which is a sulfur-bridged aromatic ring system. It is known for its potential applications in various chemical and pharmaceutical processes, including the synthesis of certain drugs and as an intermediate in the production of other organic compounds. The compound's unique structure also makes it a subject of interest in materials science, where it may be explored for its electronic and optical properties.

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  • 263-06-9 Structure

  • Basic information

    1. Product Name: 6H,12H-Dibenzo<1,5>dithiocin
    2. Synonyms: 6H,12H-Dibenzo<1,5>dithiocin
    3. CAS NO:263-06-9
    4. Molecular Formula:
    5. Molecular Weight: 244.381
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 263-06-9.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: 6H,12H-Dibenzo<1,5>dithiocin(CAS DataBase Reference)
    10. NIST Chemistry Reference: 6H,12H-Dibenzo<1,5>dithiocin(263-06-9)
    11. EPA Substance Registry System: 6H,12H-Dibenzo<1,5>dithiocin(263-06-9)

  • 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: 263-06-9(Hazardous Substances Data)

263-06-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 263-06-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 2,6 and 3 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 263-06:
(5*2)+(4*6)+(3*3)+(2*0)+(1*6)=49
49 % 10 = 9
So 263-06-9 is a valid CAS Registry Number.

263-06-9Downstream Products

263-06-9Relevant articles and documents

Cycloaddition of Benzothiete and Electron-deficient Nitriles

Schmidt, Michael,Meier, Herbert,Saleh, Sadiq A.

, p. 573 - 575 (2007/10/02)

The o-quinoid 8? electron system 2, generated by thermal ring opening of benzothiete (1), enters regiospecific (8? + 2?) cycloaddition reactions with electron-deficient nitriles 3a-d, yielding the 4H-1,3-benzothiazines 4a-d.A competitive dimerization of 1

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.

Cycloaddition of Benzothiete to 4-Substituted Styrenes

Meier, Herbert,Schmidt, Michael,Eckes, Heinz-Ludwig

, p. 1545 - 1550 (2007/10/02)

By thermal ring opening benzothiete (1) generates an 8-? electron system 2, which forms the cycloadducts 4/5a-j with 4-substituted styrenes 3a-j.The enhancement of the reactivity by electron-donating as well as electron-withdrawing substituents and their influence on the regioselectivity are discussed by applying frontier orbital calculations. - Key Words: Cycloaddition; Substituent effects; Reactivity; Regioselectivity; FMO calculations

CYCLOADDITON REACTIONS OF BENZOTHIETE AND HETERO DIENOPHILES FOR THE SYNTHESIS OF HETEROCYCLIC SYSTEMS

Jacob, Dominic,Peter-Niedermann, Hans,Meier, Herbert

, p. 5703 - 5706 (2007/10/02)

Benzothiete (1) undergoes cycloaddition reactions with hetero dienophiles with NN-, NO- or CO- double bonds, leading to six-membered heterocyclic ring systems of 2H-3,4-dihydro-1,2,3-benzothiadiazine (3), 4H-3,1,2-benzoxathiazine (4) and 4H-3,1-benzoxathiin.

Cycloaddition Reactions of Benzothiete with Azomethines

Jacob, Dominic,Meier, Herbert

, p. 1085 - 1086 (2007/10/02)

A new synthetic route to 3,4-dihydro-2H-1,3-benzothiazines 5 has been developed by the regiospecific cycloaddition of Schiff bases 4 and benzothiete 1, which is primarily opened by heating to the corresponding o-quinoidal form 2.

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