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1-oxo-1,2-dihydro-2,3-diazaphenoxathiin is a complex organic compound with the molecular formula C11H8N2OS. It is a derivative of phenoxathiin, which is a heterocyclic compound containing oxygen, sulfur, and nitrogen atoms. This specific compound features a diaza (two nitrogen atoms) structure and a phenoxathiin core, with an additional oxo (carbonyl) group. It is characterized by its unique chemical properties and potential applications in various fields, such as pharmaceuticals and materials science. Due to its complex structure, 1-oxo-1,2-dihydro-2,3-diazaphenoxathiin may exhibit specific reactivity and stability, making it an interesting subject for further research and development.

85302-02-9

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85302-02-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 85302-02-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,3,0 and 2 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 85302-02:
(7*8)+(6*5)+(5*3)+(4*0)+(3*2)+(2*0)+(1*2)=109
109 % 10 = 9
So 85302-02-9 is a valid CAS Registry Number.

85302-02-9Downstream Products

85302-02-9Relevant academic research and scientific papers

Chemistry of Phenoxathiins and Isosterically Related Heterocycles. XXIV. Synthesis and Characterization by 13C-NMR Spectroscopy of Isomeric Benzoxathiinopyridazinones: 1-Oxo-1,2-dihydro-2,3-diazaphenoxathiin and 4-Oxo-3,4-dihydro-diazaphenoxathiin. The First Observation of a Smiles ...

Womack, Charles H.,Martin, Linda M.,Martin, Gary E.,Smith, Keith

, p. 1447 - 1452 (2007/10/02)

Condensation of a disodium salt of o-mercaptophenol with 4,5-dichloro-6(1H)-pyridazinone in N,N-dimethylformamide has been observed to lead to the formation of both possible isomeric benzoxathiinopyridazinones.The separation of these isomers, 1-oxo-1,2-dihydro-2,3-diazaphenoxathiin and 4-oxo-3,4--dihydro-2,3-diazaphenoxathiin and their characterization by 13C-nmr spectroscopy is described.Mechanisms to account for the formation of both isomers are discussed, the most probable mechanism involving a Smiles rearrangement of the phenolate sulfide intermediate formed by the initial displacement of the 4-chloro substituent, providing a specie analogous to a β-halovinylogous ketone.

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