71688-11-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71688-11-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,6,8 and 8 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 71688-11:
(7*7)+(6*1)+(5*6)+(4*8)+(3*8)+(2*1)+(1*1)=144
144 % 10 = 4
So 71688-11-4 is a valid CAS Registry Number.
71688-11-4Relevant articles and documents
THIA-ACYLIMINIUM - OLEFIN CYCLIZATIONS
Hamersma, J. A. M.,Speckamp, W. N.
, p. 3255 - 3266 (2007/10/02)
Regioselective NaBH4/H(1+)-reduction of thiazolidine-diones 3 - 8 substituted at the nitrogen atom with different ?-nucleophiles affords hydroxylactams 9 - 14 in good yields.The latter compounds are excellent precursors for the α-acyliminium ion 16 and ca
