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27984-20-9

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27984-20-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 27984-20-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,9,8 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 27984-20:
(7*2)+(6*7)+(5*9)+(4*8)+(3*4)+(2*2)+(1*0)=149
149 % 10 = 9
So 27984-20-9 is a valid CAS Registry Number.

27984-20-9Downstream Products

27984-20-9Relevant articles and documents

Catalytic Use of Elemental Gallium for Carbon-Carbon Bond Formation

Qin, Bo,Schneider, Uwe

supporting information, p. 13119 - 13122 (2016/10/25)

The first catalytic use of Ga(0) in organic synthesis has been developed by using a Ag(I) cocatalyst, crownether ligation, and ultrasonic activation. Ga(I)-catalyzed C-C bond formations between allyl or allenyl boronic esters and acetals, ketals, or aminals have proceeded in high yields with essentially complete regio- and chemoselectivity. NMR spectroscopic analyses have revealed novel transient Ga(I) catalytic species, formed in situ through partial oxidation of Ga(0) and B-Ga transmetalation, respectively. The possibility of asymmetric Ga(I) catalysis has been demonstrated.

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