1332708-91-4

Upstream product

• 75-77-4 chloro-trimethyl-silane 
• 33439-27-9 N-tosyl-4-piperidone 

Downstream Products

• 949852-44-2 5-(toluene-4-sulfonyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine 
• 171009-41-9 O-ethyl-S-(4-oxo-1-tosylpiperidin-3-yl)carbonodithioate 
• 1101206-99-8 dithiocarbonic acid O-ethyl ester S-[4-oxo-1-(toluene-4-sulfonyl)-piperidin-3-yl]ester 
• 1509927-90-5 1-[(ethoxycarbonothioyl)thio]-2-(4-oxo-1-tosylpiperidin-3-yl)ethyl pivalate 

Relevant academic research and scientific papers

Flexible routes to thiophenes

Three convergent routes to thiophenes are described, hinging on the radical addition of α-xanthyl ketones to ethyl vinyl sulfide or to vinyl pivalate. The latter route ultimately proved to be the most versatile and efficient (61-94%).

METHOD FOR PRODUCING SILYLENOL ETHERS

The present invention provides a method for producing a silyl enol ether compound, which is convenient, has highly broad utility and places a low environmental load (less waste). The present invention relates to a method for producing silyl enol ether compound (3), including reacting ketone or aldehyde compound (1) with allylsilane compound (2) in the presence of a base and 0.00001 to 0.5 equivalents of an acid catalyst relative to ketone or aldehyde compound (1), wherein R1 is a hydrogen atom, an alkyl group, an aryl group or the like; R2 and R3 are each a hydrogen atom, a halogen atom, an alkyl group, an aryl group or the like; R1 and R3, R1 and R2, or R2 and R3 optionally form a ring, together with the carbon atom(s) bonded thereto; R4 , R5 and R6 are each a hydrogen atom, an alkyl group or the like; two of R4, R5 and R6 optionally form a ring; R7, R8, R9, R10 and R11 are each a hydrogen atom, an alkyl group or the like; two of R7, R8, R9, R10 and R11 optionally form a ring.