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2H-1,4-Benzothiazin-3(4H)-one, 4-methyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

37142-87-3

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37142-87-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 37142-87-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,7,1,4 and 2 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 37142-87:
(7*3)+(6*7)+(5*1)+(4*4)+(3*2)+(2*8)+(1*7)=113
113 % 10 = 3
So 37142-87-3 is a valid CAS Registry Number.

37142-87-3Relevant academic research and scientific papers

An efficient ligand-free ferric chloride catalyzed synthesis of annulated 1,4-thiazine-3-one derivatives

Majumdar,Ghosh, Debankan

supporting information, p. 3108 - 3110 (2014/05/20)

A straight forward route for the synthesis of coumarin-, quinolone-annulated 1,4-thiazine-3-one derivatives has been achieved by using sodium sulfide as the sulfur source and ferric chloride as catalyst in a ligand-free condition. The synthetic procedure is simple, inexpensive, and affords the products in good yields. This methodology is also applicable to naphthalene and benzene systems.

An efficient ligand-free ferric chloride catalyzed synthesis of annulated 1,4-thiazine-3-one derivatives

Majumdar,Ghosh, Debankan

supporting information, p. 3108 - 3110 (2015/03/18)

A straight forward route for the synthesis of coumarin-, quinolone-annulated 1,4-thiazine-3-one derivatives has been achieved by using sodium sulfide as the sulfur source and ferric chloride as catalyst in a ligand-free condition. The synthetic procedure is simple, inexpensive, and affords the products in good yields. This methodology is also applicable to naphthalene and benzene systems.

Nickel-mediated inter- and intramolecular C-S coupling of thiols and thioacetates with aryl iodides at room temperature

Xu, Xiao-Bo,Liu, Jian,Zhang, Jian-Jian,Wang, Ya-Wen,Peng, Yu

, p. 550 - 553 (2013/04/11)

A Ni(0)-catalyzed intermolecular cross-coupling of various functionalized thiols and aryl iodides has been developed and successfully extended to less explored intramolecular versions, where thioacetates could also be utilized as the strategic surrogate. Air-stable precatalysts, very mild conditions, and an easy protocol allow rapid access to medicinally useful aryl thioethers, as demonstrated in the facile synthesis of (±)-chuangxinmycin as a key step.

AZO METAL CHELATE DYE AND OPTICAL RECORDING MEDIUM

-

Page/Page column 27-28, (2011/04/24)

To provide a dye to be used for an optical recording medium excellent in both high speed recording characteristics and reproduction durability. A dye having an azo compound represented by the following formula coordinated to a metal ion: wherein the ring

Copper-catalyzed cascade syntheses of 2 H -benzo[ b ][1,4]thiazin-3(4 H)-ones and quinoxalin-2(1 H)-ones through capturing S and N atom respectively from AcSH and TsNH2

Chen, Dingben,Wang, Zhi-Jing,Bao, Weiliang

supporting information; experimental part, p. 5768 - 5771 (2010/10/03)

A copper-catalyzed cascade method has been developed to synthesize the 2H-benzo[b][1,4]thiazin-3(4H)-ones from 2-halo-N-(2-halophenyl)-acetamides 1 and AcSH via the SN2/deacetylation/coupling process, and to synthesize the quinoxalin-2(1H)-ones from 1 and TsNH2 via the S N2/coupling/desulfonation process. The target products were obtained with diversity at three positions on their scaffolds.

Synthesis and antiinflammatory activity of some newer N-(substituted phenyl)-2HI4H-benzo [b] [1,4] thiazin-3-amines

Maheshwari, Monika,Yadav, Mithlesh,Pathak, Devendra

, p. 145 - 148 (2013/09/23)

2-Aminothiophenol on condensation with ethyl chloroacetate gave 2H-benzo [b] [1,4] thiazin-3[4H]-one 1 which on chlorination with POCl3 yielded 3- chloro-2H-benzo [b] [1,4]-thiazine 2, compound 2 with substituted anilines yielded N-(substituted phenyl)-2H-benzo [b] [1,4] thiazine-3-amines 3a-f. 2 on the other hand on methylation with methyl iodide gave 4-methyl-2H-benzo [b] [1,4] thiazin-3(4H)-one 4, which on chlorination with POCl3 yielded 3-chloro-4-methyl-4H-benzo [b] [1,4] thiazine 5,5 on treatment with substituted anilines gave 4-methyl-N-(substituted phenyl)-2H-benzo [b] [1,4]-thiazin-3-amines 6a-f. The structures of newly synthesized compounds were elucidated on the basis of FTIR, 1H NMR, mass and elemental analysis and screened for their antiinflammatory activity.

An alternative efficient method for transformation of thiocarbonyl to carbonyl group using trifluoroacetic anhydride

Masuda, Ryoichi,Hojo, Masaru,Ichi, Tadaaki,Sasano, Shigetoshi,Kobayashi, Tatsuya,Kuroda, Chihiro

, p. 1195 - 1198 (2007/10/02)

A simple and efficient procedure for the rapid and mild conversion of thiocarbonyls to carbonyls in high yields is described.

Synthesis, antibacterial and antifungal activities of several new benzo- naphtho- and quinolino-1,4-thiazine and 1,5-thiazepine derivatives

Ambrogi, V.,Grandolini, G.,Perioli, L.,Ricci, M.,Rossi, C.,Tuttobello, L.

, p. 403 - 411 (2007/10/02)

The synthesis of a number of thiosemicarbazone, phenylthiosemicarbazone, oxime and oxime O-ester derivatives of benzo- naphtho- and quinolino-1,4-thiazines and 1,5-thiazepines is described.All the compounds were tested in vitro for their antimicrobial act

An Improved Alkylation of 2H-1,4-Benzothiazin-3(4H)-one and Related Heterocyclic Anilides

Marfat, Anthony,Carta, Michael P.

, p. 515 - 517 (2007/10/02)

Various N-substituted derivatives of 2H-1,4-benzothiazin-3(4H)-one are obtained in high yields employing functionalized alkyl halides and potassium tert-butoxide in dimethylformamide.The method is mild, regioselective and tolerates a variety of functional groups.

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