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139775-79-4

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139775-79-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139775-79-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,7,7 and 5 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 139775-79:
(8*1)+(7*3)+(6*9)+(5*7)+(4*7)+(3*5)+(2*7)+(1*9)=184
184 % 10 = 4
So 139775-79-4 is a valid CAS Registry Number.

139775-79-4Downstream Products

139775-79-4Relevant articles and documents

CARBONYLATIVE COUPLING REACTION OF ORGANOFLUOROSILANES WITH ORGANIC HALIDES PROMOTED BY FLUORIDE ION AND PALLADIUM CATALYST

Hatanaka, Yasuo,Fukushima, Satoshi,Hiyama, Tamejiro

, p. 2113 - 2126 (2007/10/02)

Palladium-catalyzed carbonylative cross coupling reaction of organofluorosilanes with organic halides was achieved in the presence of fluoride ion and an atmospheric pressure of carbon monoxide.Alkenyl- or arylfluorosilanes effectively underwent this reaction with alkenyl or aryl iodides in moderate to good yields.Thus, highly functionalized ketones are readily available without protection of reactive functional group such as aldehyde, ketone, ester, nitril, and alcohol.For smooth ketone formation, use of organofluorosilanes is essential; tetraorganosilanes like aryl(trimethyl)silanes, upon reaction with aryl iodides, gave aroyl fluorides instead. Key Words: carbonylative coupling; organofluorosilanes; ketone synthesis

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