771-17-5

Upstream product

• 122080-55-1 Se-Phenyl 2-(Prop-2-enylthio)selenobenzoate 
• 79-41-4 poly(methacrylic acid) 
• 108-98-5 thiophenol 
• 3528-17-4 2,3-dihydro-4H-[1]benzothiopyran-4-one 
• 74-88-4 methyl iodide 
• 158667-07-3 2-(allylthio)benzoyl chloride 
• 17839-66-6 2-allylsulfanylbenzoic acid 

Downstream Products

• 29373-04-4 3-methyl-4-oxothiochroman S-oxide 
• 74328-43-1 3-methyl-1-(p-tolylsulphonylimino)thiochroman-4-one 
• 74328-44-2 4-methyl-2-p-tolylsulphonyl-2,3-dihydro-1,2-benzothiazepin-5(4H)-one 
• 771-18-6 3-methylthiochromen-4-one 
• 81584-82-9 2,3-dichloro-3-methylthiochroman-4-one S-oxide 
• 81576-37-6 2-chloro-3-methylthiochromen-4-one S-dioxide 
• 76664-73-8 4-Methyl-N-[2-(2-methyl-acryloyl)-phenylsulfanyl]-benzenesulfonamide 
• 1373398-92-5 C₁₉H₁₉N₃S 
• 1373398-91-4 C₁₉H₁₉N₃S 

Relevant academic research and scientific papers

Superelectrophilic Activation of Crotonic/Methacrylic Acids: Direct Access to Thiochroman-4-ones from Benzenethiols by Microwave-Assisted One-Pot Alkylation/Cyclic Acylation

An efficient microwave-assisted protocol for the synthesis of 2-/3-methylthiochroman-4-ones by superacid-catalyzed alkylation followed by cyclic acylation (cyclization via intramolecular acylation) is described. Using easily accessible benzenethiols and crotonic acid/methacrylic acid with triflic acid (as catalyst of choice for needed optimal acidity), the reaction was tuned toward the formation of the cyclized products in good selectivity and yield. A mechanism involving the formation of carbenium-carboxonium superelectrophilic species is suggested.

Development of a chiral bis(guanidino)iminophosphorane as an uncharged organosuperbase for the enantioselective amination of ketones

Chiral bis(guanidino)iminophosphoranes were designed and synthesized as chiral uncharged organosuperbase catalysts that facilitate activation of less-acidic pro-nucleophiles. The newly developed bis(guanidino) iminophosphoranes, which possess the highest basicity among chiral organocatalysts reported to date, were proven to be a superb class of chiral organosuperbases by reaction of azodicarboxylates with 2-alkyltetralones and their analogues as the less acidic pro-nucleophiles.

Thiacycloalkynes for copper-free click chemistry

The heteroatom helps! The introduction of an endocyclic sulfur atom enables fine-tuning of the reactivity and stability of thiacycloalkynes for copper-free click chemistry. The stabilizing effect of the endocyclic sulfur atom allows the use of highly activated seven-membered rings as reagents for bioorthogonal copper-free click chemistry. Copyright

ACYL RADICAL CYCLIZATIONS IN SYNTHESIS. PART 2. FURTHER SUBSTITUENT EFFECTS ON THE MODE AND EFFICIENCY OF CYCLIZATION OF 6-HEPTENOYL RADICALS.

In an attempt to determine the factors affecting exo-/endo-selectivity in the cyclization of 6-heptenoyl radicals various heteroatom substituted selenol esters were prepared and reacted with tributyltin hydride.The incorporation of a 7-phenylthio moity re

CARBONYL RADICAL CYCLIZATIONS: PREPARATION OF SOME HETEROCYCLIC KETONES

It has been possible to synthesize 3-methylchromanone, 3-methylthiochromanone and 2,3-dihydro-3-methylquinolin-4-one from salicylic acid, thiosalicylic acid and anthranilic acid respectively by carbonyl radical cyclizations.