104804-81-1

Basic information

• Product Name: 1,4-Dioxa-8-thiaspiro[4.5]decane, 7-[(4-methylphenyl)sulfonyl]-7-(phenylmethyl)-, 8,8-dioxide
• CAS NO: 104804-81-1
• Molecular Formula: C21H24O6S2
• Molecular Weight: 436.55
• Mol File: 104804-81-1.mol

Chemical Properties

• CAS DataBase Reference: 1,4-Dioxa-8-thiaspiro[4.5]decane, 7-[(4-methylphenyl)sulfonyl]-7-(phenylmethyl)-, 8,8-dioxide(CAS DataBase Reference)
• NIST Chemistry Reference: 1,4-Dioxa-8-thiaspiro[4.5]decane, 7-[(4-methylphenyl)sulfonyl]-7-(phenylmethyl)-, 8,8-dioxide(104804-81-1)
• EPA Substance Registry System: 1,4-Dioxa-8-thiaspiro[4.5]decane, 7-[(4-methylphenyl)sulfonyl]-7-(phenylmethyl)-, 8,8-dioxide(104804-81-1)

Safety Data

• Hazardous Substances Data: 104804-81-1(Hazardous Substances Data)

Upstream product

• 100-39-0 benzyl bromide 
• 104804-79-7 7-(p-tolylsulfonyl)-1,4-dioxa-8-thiaspiro<4.5>decane 8,8-dioxide 
• 824-79-3 sodium 4-methylbenzenesulfinate 
• 107617-10-7 7-(Toluene-4-sulfonyl)-1,4-dioxa-8-thia-spiro[4.5]decane 
• 104804-78-6 2-(p-tolylsulfonyl)-4-thianone 
• 57242-69-0 2,3-dihydro-4H-thiopyran-4-one 

Relevant articles and documents

A Regioselective Synthesis of Cyclopentenones from 4-Thianone

Alkyl-substituted 3-cyclopentenones 4 and 5 were prepared in moderate to good yields starting from 4-thianone by the selective alkylation and Ramberg-Baecklund-type reactions.One route starts with 6-alkyl-1,4-dioxa-8-thiaspirodecane 8,8-dioxides (8) and another with 7-alkyl-1,4-dioxa-7-(p-tolylsulfonyl)-8-thiaspirodecane 8,8-dioxides (15), followed by acid-catalyzed cleavage of the 1,3-dioxolane ring of 1,4-dioxaspironon-7-enes 9 and 16 to afford 4 and 5.

REGIOSELECTIVE ALKYLATION AND THE RAMBERG-BAECKLUND TYPE REACTION OF α-(p-TOLYLSULFONYL)THIANE S,S-DIOXIDE. A NEW ROUTE TO THE SYNTHESIS OF 3-ALKYL-3-CYCLOPENTENONES

A new general olefin synthesis, via regioselective alkylation of α-(p-tolylsulfonyl)thiane S,S-dioxide, 1,4-dioxa-7-p-tolylsulfonyl-8-thiaspirodecane 8,8-dioxide, and subsequent Ramberg-Baecklung type elimination of p-toluenesulfinate and SO2, is here applied to the synthesis of 3-alkyl-3-cyclopentanones.