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1227180-58-6

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1227180-58-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1227180-58-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,7,1,8 and 0 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1227180-58:
(9*1)+(8*2)+(7*2)+(6*7)+(5*1)+(4*8)+(3*0)+(2*5)+(1*8)=136
136 % 10 = 6
So 1227180-58-6 is a valid CAS Registry Number.

1227180-58-6Downstream Products

1227180-58-6Relevant articles and documents

Trifluoromethanesulfonyloxy-group-directed regioselective (3 + 2) cycloadditions of benzynes for the synthesis of functionalized benzo-fused heterocycles

Ikawa, Takashi,Kaneko, Hideki,Masuda, Shigeaki,Ishitsubo, Erika,Tokiwa, Hiroaki,Akai, Shuji

, p. 520 - 526 (2015)

Highly regioselective (3 + 2) cycloadditions of (trifluoromethanesulfonyloxy)benzynes [(triflyloxy)benzynes] with 1,3-dipoles followed by cross-coupling reactions provided multisubstituted benzo-fused heterocycles. The triflyloxy group at the 3-position of benzynes, and even that at the remote 4-position, greatly affected the regiocontrol of the cycloaddition. These groups also served to install other substituents at their ipso-positions.

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