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401591-40-0

1-Penten-3-one, 5-(ethylthio)-1-phenyl-, (1E)- is a sulfur-containing unsaturated ketone derived from the reaction of β-(ethylsulfanyl)propionyl derivatives with alkenes, followed by base-induced cleavage of intermediate cyclic sulfonium salts. 1-Penten-3-one, 5-(ethylthio)-1-phenyl-, (1E)- features a conjugated enone system with an ethylthio substituent at the 5-position and a phenyl group at the 1-position, adopting the (1E)-configuration. The synthesis involves the formation of a six-membered cyclic sulfonium salt intermediate, which is subsequently opened to yield the final product.

401591-40-0

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401591-40-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 401591-40-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,1,5,9 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 401591-40:
(8*4)+(7*0)+(6*1)+(5*5)+(4*9)+(3*1)+(2*4)+(1*0)=110
110 % 10 = 0
So 401591-40-0 is a valid CAS Registry Number.

401591-40-0Relevant articles and documents

Reactions of acylsulfonium salts with unsaturated hydrocarbons

Nenajdenko, Valentine G,Lebedev, Mikhail V,Balenkova, Elisabeth S

, p. 9017 - 9024 (2001)

The reactions of acylsulfonium salts, obtained from β-(ethylsulfanyl)propionyl fluoride and (ethylsulfanyl)acetyl fluoride, with various unsaturated hydrocarbons proceed through the formation of six- and five-membered cyclic sulfonium salts, respectively. Succeeding cleavage of sulfonium salts by bases affords the corresponding sulfur containing unsaturated ketones.

Reaction of β-Alkylthiopropionyl Tetrafluoroborates with Alkenes

Nenajdenko, Valentine G.,Lebedev, Mikhail V.,Balenkova, Elizabeth S.

, p. 6317 - 6320 (1995)

The reaction of β-alkylthiopropionyl tetrafluoroborates with alkenes results in formation of 6-membered cyclic sulfonium salts.Succeeding cleavage of sulfonium salts by bases affords the corresponding 5-alkylthiopent-1-en-3-ones.

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