65293-08-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 65293-08-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,2,9 and 3 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 65293-08:
(7*6)+(6*5)+(5*2)+(4*9)+(3*3)+(2*0)+(1*8)=135
135 % 10 = 5
So 65293-08-5 is a valid CAS Registry Number.
65293-08-5Relevant articles and documents
PYROLYSIS OF 2-ALLYLOXYTROPONES: A NEW ELIMINATION RECTION TO TERMINAL DIENES
Takeshita, Hitoshi,Mametsuka, Hiroaki,Uchida, Kingo
, p. 1061 - 1064 (1982)
By pyrolysis over 140 deg C, several 2-alkenyloxytropones gave terminal dienes and regenerated tropolones.The elimination proceeded in the electrocyclic 6?+2?+2?-mode on the Claisen intermediates.This was applied to a synthesis of thujopsadiene.