138175-88-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138175-88-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,1,7 and 5 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 138175-88:
(8*1)+(7*3)+(6*8)+(5*1)+(4*7)+(3*5)+(2*8)+(1*8)=149
149 % 10 = 9
So 138175-88-9 is a valid CAS Registry Number.
138175-88-9Relevant articles and documents
HYDROZIRCONATION / TRANSMETALATION / ALKYLATION: DIRECT ONE-POT CONVERSION OF 1-ALKYNES TO E-1,2-DISUBSTITUTED ALKENES
Lipshutz, Bruce H.,Kato, Kaneyoshi
, p. 5647 - 5650 (2007/10/02)
Hydrozirconation of terminal acetylenes followed by transmetalation of the intermediate vinyl zirconate with a higher order cyanocuprate affords mixed vinylic cuprates which undergo alkylations with a variety of electrophiles.