Cas 109386-08-5,(3R,4R)-2-[1-Phenyl-meth-(E)-ylidene]-tetrahydro-thiophene-3,4-dicarboxylic acid diethyl ester

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Check Digit Verification of cas no

The CAS Registry Mumber 109386-08-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,3,8 and 6 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 109386-08:
(8*1)+(7*0)+(6*9)+(5*3)+(4*8)+(3*6)+(2*0)+(1*8)=135
135 % 10 = 5
So 109386-08-5 is a valid CAS Registry Number.

109386-08-5Upstream product

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109386-08-5Relevant academic research and scientific papers

NEW METHOD FOR GENERATION OF THIOCARBONYL YLIDES FROM BIS(TRIMETHYLSILYLMETHYL)SULFOXIDES AND THEIR APPLICATION TO CYCLOADDITIONS

Aono, Masaaki,Terao, Yoshiyasu,Achiwa, Kazuo

, p. 249 - 260 (2007/10/02)

Thiocarbonyl ylides were generated by heating of bis(trimethylsilylmethyl)sulfoxides.Cycloadditions of the ylides in the presence of dipolarophiles proceeded smoothly to give di- or tetrahydrothiophenes.

Generation of Thioketenes S-methylides and Their 1,3-Cycloadditions

Terao, Yoshiyasu,Aono, Masahiro,Takahashi, Ikue,Achiwa, Kazuo

, p. 2089 - 2092 (2007/10/02)

Thioketene S-methylide was found to be generated by release of disiloxane from α-(trimethylsilyl) vinyl (trimethylsilyl)methyl sulfoxide and its 1,3-cycloaddition provided a novel method for synthesis of 2-alkylidenetetrahydrothiophenes.

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