57094-07-2

Upstream product

• 55221-37-9 2,6-diphenyl-4-hydroxy-4H-tetrahydrothiopyran 
• 13586-29-3 2,6-diphenylthiopyrilium perchlorate 
• 71750-06-6 2,6-diphenyl-2H-thiopyran 
• 6263-83-8 1,5-diphenyl-1,5-pentanedione 

Downstream Products

• 1029-96-5 2,6-diphenyl-4H-thiopyran-4-one 
• 71750-06-6 2,6-diphenyl-2H-thiopyran 
• 73453-38-0 2,6-Diphenyl-4--4H-thiopyran 
• 73453-37-9 Δ^4,9'-2,6-Diphenyl-4-(9'-thioxanthenyl)-4H-thiopyran 
• 80160-67-4 2,6-diphenyl-4-<2-(2,6-diphenyl-4H-pyran-4-ylidene)propan-1-ylidene>-4H-thiopyran 
• 75548-95-7 4-[2-(2,6-Diphenyl-thiopyran-4-ylidene)-ethylidene]-2,6-diphenyl-4H-pyran 
• 51829-03-9 4,4'-(ethandilyden)-bis[(2,6-diphenyl)-4H-thiapyran] 
• 80160-66-3 Trimethyl-(4-methyl-2,6-diphenyl-4H-thiopyran-4-yl)-silane 
• 80160-65-2 2,6-diphenyl-4-deuterio-4-(trimethylsilyl)-4H-thiopyran 
• 41068-60-4 2,6-diphenyl-4H-thiopyran-4-one 1,1-dioxide 
• 13858-68-9 phenyl (5-phenylthiophen-2-yl) methanone 
• 80160-61-8 2,6-diphenyl-4-(trimethylsilyl)-4H-thiopyran 

Relevant academic research and scientific papers

Study of the state of rhodium in the potassium rhodiumundecatungstosilicate/alumina system by diffuse-reflectance IR spectroscopy

Adsorption of CO on the catalytic system K5[SiW11RhO39]/Al2O3 was studied by diffusereflectunce IR spectroscopy. The electronic state of rhodium and thermal stability of the system in the redox cycles

Synthesis and Reactions of 2,6-Diphenyl-4-(trimethylsilyl)-4H-thiopyran

The title compound 3 was synthesized by trimethylsilyl chloride quenching of 2,6-diphenyl-4-lithio-4H-thiopyran (7), which was obtained by direct lithiation (n-BuLi) of either the 4H-thiopyran 10 or the 2H isomer 6.Compound 6 was readily prepared in one step from the reaction of 2,6-diphenyl-4-hydroxy-4H-thiopyran (5) with NCS in 74percent yield.Compound 3 was metalated to give 12 in 80-85percent yield by using a combination of n-BuLi and t-BuOK in THF at an internal temperature slightly below -20 deg C.The successful reaction of 12 with a variety of ketones and aldehydes provides an alternative synthesis of the Δ4-2,6-diphenyl-4H-thiopyrans 16.The scope and limitation of this Peterson-type reaction of 12 is compared with those of the corresponding Wittig-Horner reagent 2.