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1388859-81-1

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1388859-81-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1388859-81-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,8,8,5 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1388859-81:
(9*1)+(8*3)+(7*8)+(6*8)+(5*8)+(4*5)+(3*9)+(2*8)+(1*1)=241
241 % 10 = 1
So 1388859-81-1 is a valid CAS Registry Number.

1388859-81-1Relevant articles and documents

Facile conversion of CF3-containing propargylic alcohol derivatives via the corresponding allenes

Yamazaki, Takashi,Watanabe, Yohsuke,Yoshida, Nao,Kawasaki-Takasuka, Tomoko

supporting information; experimental part, p. 6665 - 6673 (2012/08/28)

Empirical information on the acidity of the propargylic proton from our previous work allowed us to develop novel synthetic transformations of readily available terminally trifluoromethylated propargylic alcohols 1 into the corresponding allenyl tosylates 3a, 1-tosyloxy- or 1-acyloxy-4,4,4- trifluorobutan-2-ones 4, and 2-(2,2,2-trifluoroethyl)prop-2-en-1-ones 5, which was enabled by such common bases as NaOH and tertiary amines for affecting ready abstraction of this proton.

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