20940-09-4

Upstream product

• 1155-00-6 bis(2-nitrophenyl)disulfide 
• 4875-10-9 o-nitrothiophenol 
• 70-11-1 α-bromoacetophenone 
• 7669-54-7 2-nitrobenzenesulfenyl chloride 
• 98-86-2 acetophenone 
• 13735-81-4 1-styrenyloxytrimethylsilane 

Downstream Products

• 1629-75-0 2-benzoylbenzothiazole 
• 4875-10-9 o-nitrothiophenol 
• 65-85-0 benzoic acid 
• 100725-45-9 3-phenyl-2H-benzo[1,4]thiazine-4-oxide 
• 20940-07-2 3-phenyl-2H-benzo[b][1,4]thiazine 
• 332347-29-2 1r-Chlor-2t-(2-nitrophenylmercapto)-1-phenylethen 
• 76148-78-2 2-((2-nitrophenyl)sulfonyl)-1-phenylethan-1-one 
• 128183-93-7 2-nitrophenyl styryl sulphide 
• 100710-54-1 2-(2-aminophenylthio)-1-phenylethanol 
• 28097-52-1 2-(o-Nitrophenylthio)-1-phenylethanol 
• 19111-35-4 3-phenyl<1,4>benzthiazene-1,1-dioxide 
• 20940-10-7 2-(3-phenyl-2H-1,4-benzthiazin-2-yl)-3-phenyl-2H-1,4-benzothiazine 
• 1257881-30-3 2,2-difluoro-2-(2-nitrophenylsulfonyl)-1-phenylethanone 

Relevant academic research and scientific papers

Reactions of chlorosulfanyl derivatives of cyclobutanones with different nucleophiles

The reactions of 3-chloro-3-(chlorosulfanyl)-2,2,4,4-tetramethylcyclobutan- l-one (2) with N, O, S, and P nucleophiles occur by substitution of Cl at the S-atom. Whereas, in the cases of secondary amines, alkanols, phenols, thiols, thiophenols, and di- an

Radical Route to 1,4-Benzothiazine Derivatives from 2-Aminobenzenethiols and Ketones under Transition-Metal-Free Conditions

Transition-metal-free radical access to 1,4-benzothiazine derivatives from o-aminobenzenethiols is disclosed. This procedure is available for various ketones including α,β-unsaturated, cyclic, linear, and fluoroalkyl ketones to generate a number of 1,4-benzothiazines, which exist in numerous bioactive and natural molecules, rendering this protocol attractive to both synthetic and medicinal chemistry.

An efficient fluorination of β-ketosulfones promoted by a room-temperature ionic liquid at ambient conditions under ultrasound irradiation using Selectfluor F-TEDA-BF4

The fluorination reaction involving a β-ketosulfones by Selectfluor was efficiently promoted by the ionic liquid, [Hbim]BF4 (IL) as a reaction medium with methanol as co-solvent at room temperature under ultrasonic irradiation to afford the corresponding mono and difluoro-β-ketosulfones in excellent yields. The advantages of this method include among others the use of a recyclable, non-volatile ionic liquid, which promotes this protocol under room temperature without the requirement of any added catalyst under ultrasonic irradiation.

New dyes based on 3-aryl-benzo- and -naphtho-1,4-thiazines

3-Aryl-2H-1,4-benzothiazines have been converted into cyanine dyes by condensing their hydroperchlorates with aldehydes, and into azo-compounds by coupling with reactive diazonium salts. The azo-compounds were also obtained by condensing arylglyoxal hydra