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71964-06-2

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71964-06-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71964-06-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,9,6 and 4 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 71964-06:
(7*7)+(6*1)+(5*9)+(4*6)+(3*4)+(2*0)+(1*6)=142
142 % 10 = 2
So 71964-06-2 is a valid CAS Registry Number.

71964-06-2Relevant articles and documents

CONVENIENT METHODS FOR THE PREPARATION OF VINYLIC AND ALLYLIC SULFONES FROM ALKENES

Inomata, Katsuhiko,Kobayashi, Toshifumi,Sasaoka, Shin-ichi,Kinoshita, Hideki,Kotake, Hiroshi

, p. 289 - 292 (1986)

1 or 2-p-Toluenesulfonyl(=tosyl)-1-alkenes were regioselectively prepared from 1-alkenes via iodosulfonization or sulfonylmercuration, respectively.Conversion of 1-tosyl-1-alkenes to the corresponding allylic sulfones, 1-tosyl-2-alkenes, was achieved by t

Coupling reaction of magnesium alkylidene carbenoids with α-sulfonylallyllithiums: An efficient route to multi-substituted vinylallenes

Kimura, Tsutomu,Kobayashi, Gen,Ishigaki, Masashi,Inumaru, Mio,Sakurada, Jo,Satoh, Tsuyoshi

, p. 3623 - 3632 (2013/02/23)

A variety of vinylallenes were successfully synthesized from 1-chlorovinyl p-tolyl sulfoxides and allyl or vinyl sulfones. Allyl and vinyl sulfones served as α-sulfonylallyllithium sources were prepared from carbonyl compounds in three or four steps in good overall yields. The coupling reaction of α-sulfonylallyllithiums with magnesium alkylidene carbenoids, which were generated from 1-chlorovinyl p-tolyl sulfoxides and isopropylmagnesium chloride, afforded multi-substituted vinylallenes in up to 88% yield. Georg Thieme Verlag KG Stuttgart · New York.

A CONVENIENT METHOD FOR THE PREPARATION OF α-ALKYLATED VINYLIC SULFONES AND THEIR CONVERSION TO ALLYLIC SULFONES

Inomata, Katsuhiko,Tanaka, Yuhji,Sasaoka, Shin-ichi,Kinoshita, Hideki,Kotake, Hiroshi

, p. 341 - 344 (2007/10/02)

2-Pyrrolidinoalkyl p-tolyl sulfones, which were readily available by the addition of pyrrolidine to vinylic or allylic sulfones, were converted to the corresponding α-alkylated vinylic sulfones through α-alkylation followed by elimination of pyrrolidino g

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