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156699-64-8

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156699-64-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 156699-64-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,6,9 and 9 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 156699-64:
(8*1)+(7*5)+(6*6)+(5*6)+(4*9)+(3*9)+(2*6)+(1*4)=188
188 % 10 = 8
So 156699-64-8 is a valid CAS Registry Number.

156699-64-8Downstream Products

156699-64-8Relevant articles and documents

A novel perfluoroalkylation of pyrroles with perfluoroalkanesulfonyl chloride catalyzed by a ruthenium(II) phosphine complex

Kamigata,Ohtsuka,Yoshida,Shimizu

, p. 2049 - 2055 (1994)

Direct perfluoroalkylation of N-substituted pyrroles with tridecafluorohexanesulfonyl chloride catalyzed by a ruthenium(II) phosphine complex proceeds regioselectively in high yield.

Direct Perfluoroalkylation of Aromatic and Heteroaromatic Compounds with Perfluoroalkanesulfonyl Chlorides Catalysed by a Ruthenium(II) Phosphine Complex

Kamigata, Nobumasa,Ohtsuka, Takeshi,Fukushima, Takamasa,Yoshida, Masato,Shimizu, Toshio

, p. 1339 - 1346 (2007/10/02)

The perfluoroalkylation of aromatic and heteroaromatic compounds by perfluoroalkanesulfonyl chlorides 1 has been investigated in the presence of a ruthenium(II) phosphine complex.The reaction of compounds 1 with substituted benzenes or thiophenes proceeded smoothly with extrusion of sulfur dioxide at 120 deg C to give corresponding perfluoroalkylated compounds in good yield.No expected perfluoroalkylated product was obtained in the reaction of compounds 1 with pyrrole; however, 1-trimethylsilyl- and 1-triisopropylsilyl-pyrrole were regioselectively perfluoroalkylated at their 2- and 3-position, respectively.

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