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85695-26-7

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85695-26-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 85695-26-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,6,9 and 5 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 85695-26:
(7*8)+(6*5)+(5*6)+(4*9)+(3*5)+(2*2)+(1*6)=177
177 % 10 = 7
So 85695-26-7 is a valid CAS Registry Number.

85695-26-7Relevant articles and documents

Trichloromethyltrimethylsilane, sodium formate, and dimethylformamide: A mild, efficient, and general method for the preparation of trimethylsilyl- protected 2,2,2-trichloromethylcarbinols from aldehydes and ketones

Kister, Jeremy,Mioskowski, Charles

, p. 3925 - 3928 (2007)

(Chemical Equation Presented) New conditions for the preparation of trimethylsilyl-protected 2,2,2-trichloromethylcarbinols 2 from aldehydes and ketones are reported. Compounds 2, which are important intermediates in organic synthesis, were obtained in excellent yields by use of a combination of trichloromethyltrimethylsilane (TMSCCI3), and a catalytic amount of sodium formate (HCOONa) in dimethylformamide (DMF). Substrates bearing highly sensitive protecting groups have been successfully subjected to our conditions. We also describe a one-pot procedure that gives direct access to 2,2,2-trichloromethylcarbinols 3. This methodology avoids the use of strong bases usually required for the synthesis of 3 (Wyvratt et al. J. Org. Chem. 1987, 52, 944; Aggarwal and Mereu, J. Org. Chem. 2000, 65, 7211).

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