90305-01-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90305-01-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,3,0 and 5 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 90305-01:
(7*9)+(6*0)+(5*3)+(4*0)+(3*5)+(2*0)+(1*1)=94
94 % 10 = 4
So 90305-01-4 is a valid CAS Registry Number.
90305-01-4Relevant academic research and scientific papers
Thiol mediated 5-(π-endo)ortho vinyl radical cyclizations
Montevecchi, Pier Carlo,Navacchia, Maria Luisa
, p. 201 - 219 (2007/10/03)
The radical reaction of benzenethiol with alkynes 1a-o carried out at 154 °C affords a mixture of thiol/alkyne adduct 3 and benzothiophene 5, deriving from vinyl radical intermediates 2 through hydrogen abstraction and 5-(π-endo)(orthocyclization onto the
