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29182-78-3

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29182-78-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 29182-78-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,9,1,8 and 2 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 29182-78:
(7*2)+(6*9)+(5*1)+(4*8)+(3*2)+(2*7)+(1*8)=133
133 % 10 = 3
So 29182-78-3 is a valid CAS Registry Number.

29182-78-3Relevant articles and documents

Sulfonylation of Organometallic Reagents with Arenesulfonyl Fluorides: A Simple One-Step Synthesis of Sulfones

Frye, Leah L.,Sullivan, Eileen L.,Cusack, Kevin P.,Funaro, John M.

, p. 697 - 701 (2007/10/02)

Sulfonylation of organometallic reagents was accomplished with arenesulfonyl fluorides to provide a wide variety of alkylaryl- and diaryl sulfones.Organolithium and diorganocopper lithium reagents react smoothly with arenesulfonyl fluorides to give sulfones in high yields.Alkyl Grignard reagents often lead to mixtures of monosulfonylated and disulfonylated products.However, allylmagnesium chloride and phenylmagnesium chloride provide the corresponding sulfones in excellent yields.Organocopper reagents were also found to yield sulfones upon treatment with arenesulfonyl fluorides.By utilizing this methodology, synthetically useful alkyl, (trimethylsilyl)methyl, and allyl sulfones are easily prepared in high yields.

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