233765-16-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 233765-16-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,3,7,6 and 5 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 233765-16:
(8*2)+(7*3)+(6*3)+(5*7)+(4*6)+(3*5)+(2*1)+(1*6)=137
137 % 10 = 7
So 233765-16-7 is a valid CAS Registry Number.
233765-16-7Relevant articles and documents
A facile regio- and stereocontrolled synthesis of (Z)-1-en-3-yn-2-ylstannanes via alkynyliodonium tosylates coupling with gemstannyl zirconocene alkenes
Huang, Xian,Zhong, Ping
, p. 1543 - 1545 (2007/10/03)
Acetylenic stannanes react with Cp2Zr(H)Cl (Cp = η5-C5H5) giving organozirconium(IV) complexes, which are trapped with alkynyliodonium tosylates in the presence of Pd(PPh3)4 to afford (Z)-1
