16387-56-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16387-56-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,3,8 and 7 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 16387-56:
(7*1)+(6*6)+(5*3)+(4*8)+(3*7)+(2*5)+(1*6)=127
127 % 10 = 7
So 16387-56-7 is a valid CAS Registry Number.
16387-56-7Relevant articles and documents
Reactions with Phosphine Alkylenes, 44. A Further Synthesis of (Z)-α,β-Unsaturated Aldehydes
Bestmann, Hans Juergen,Ermann, Peter
, p. 3264 - 3266 (2007/10/02)
Reaction of phosphorus ylides 4, especially such with electron donating groups R, with the glyoxal semiacetal 5 leads Z-stereospecifically to the formation of the acetals 3, which can be cleaved to the (Z)-α,β-unsaturated aldehydes 6.