83849-32-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83849-32-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,8,4 and 9 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 83849-32:
(7*8)+(6*3)+(5*8)+(4*4)+(3*9)+(2*3)+(1*2)=165
165 % 10 = 5
So 83849-32-5 is a valid CAS Registry Number.
83849-32-5Relevant articles and documents
PYROLYSIS OF 2-ALLYLOXYTROPONES: A NEW ELIMINATION RECTION TO TERMINAL DIENES
Takeshita, Hitoshi,Mametsuka, Hiroaki,Uchida, Kingo
, p. 1061 - 1064 (2007/10/02)
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.
