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128694-01-9

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128694-01-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128694-01-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,6,9 and 4 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 128694-01:
(8*1)+(7*2)+(6*8)+(5*6)+(4*9)+(3*4)+(2*0)+(1*1)=149
149 % 10 = 9
So 128694-01-9 is a valid CAS Registry Number.

128694-01-9Downstream Products

128694-01-9Relevant articles and documents

A clean and efficient synthesis of 5-(2′-fluoro-2′,3′-dimethylbutan-3′-yl) substituted 1,2,4-oxadiazoles using silver tetrafluoroborate as a fluorodesulfurization reagent

Hemming, Karl,Morgan, Dexter T.,Smalley, Robert K.

, p. 83 - 86 (2000)

5-Ethylthio-6,6,7,7-tetramethyl substituted 4-oxa-1,3-diazabicyclo[3.2.0]hept-2-enes undergo fluorodesulfurization with silver tetrafluoroborate to furnish high yields of 5-(2′-fluoro-2′,3′-dimethylbutan-3′-yl) substituted 1,2,4-oxadiazoles. Ethylthio substituted 1,2,4-triaza- and 1,3-diaza-bicyclo[3.2.0]hept-2-enes behave in a similar fashion to yield 5-(2′-fluoro-2′,3′-dimethylbutan-3′-yl) substituted 1,2,4-triazoles and imidazoles, respectively.

1,3-Dipolar cycloadditions of 2-ethoxy- and 2-(ethylthio)-1-azetines with nitrilimines

Luheshi, Abdul-Basset N.,Smalley, Robert K.,Kennewell,Westwood

, p. 127 - 130 (2007/10/02)

1,3-Dipolar cycloadditions of diphenylnitrilimines with 2EtO-and 2EtS-tetramethyl-1-azetines (1a, b) are accompanied by ring-opening and loss of EtXH (X = O or S) to give 1,2,4-triazoles (3), whereas with N-(4-nitrophenyl) nitrilimines the expected cycloadducts and/or ring-opened products are formed.

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