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1072798-30-1

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1072798-30-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1072798-30-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,7,2,7,9 and 8 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1072798-30:
(9*1)+(8*0)+(7*7)+(6*2)+(5*7)+(4*9)+(3*8)+(2*3)+(1*0)=171
171 % 10 = 1
So 1072798-30-1 is a valid CAS Registry Number.

1072798-30-1Downstream Products

1072798-30-1Relevant articles and documents

Organocatalytic methods for chemoselective O-tert-butoxycarbonylation of phenols and their regeneration from the O-t-Boc derivatives

Chankeshwara, Sunay V.,Chebolu, Rajesh,Chakraborti, Asit K.

, p. 8615 - 8618 (2008)

(Chemical Equation Presented) Carbon tetrabromide (CBr4) catalyzes O-tert-butoxycarbonylation of functionalized phenols without any side reactions (bromination, addition of CBr3 to a double bond, and formation of symmetrical diaryl carbonates, cyclic carbonates, or carbonic-carbonic anhydrides). The parent phenols are regenerated from the O-t-Boc derivatives by the catalyst system CBr4-PPh3 without affecting other protecting groups (aryl alkyl ether, alkyl ester, and thioacetal) or competitive side reaction such as bromination, nitrene (from NO2) and α,α-dibromoolefine (with CHO/COMe) formation, and transesterification (with CO2Me/Et) taking place.

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