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67996-22-9

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67996-22-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67996-22-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,9,9 and 6 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 67996-22:
(7*6)+(6*7)+(5*9)+(4*9)+(3*6)+(2*2)+(1*2)=189
189 % 10 = 9
So 67996-22-9 is a valid CAS Registry Number.

67996-22-9Downstream Products

67996-22-9Relevant articles and documents

N-Heterocyclic Carbene-Catalyzed β-Indolylation of α-Bromoenals with Indoles

Sun, Shaofa,Lang, Ming,Wang, Jian

supporting information, p. 5704 - 5708 (2019/12/24)

An unprecedented example of NHC-catalyzed β-indolylation of α-bromoenals with indoles has been developed. This concise protocol features several advantages (mild reaction conditions, broad substrate scope) and constructs synthetically useful building blocks, namely β-biaryl methylene esters. Notably, the β-biaryl methylene-type fragment is widely found in natural products or pharmaceuticals. (Figure presented.).

Catalytic enantioselective alkylation of heteroaromatic compounds using alkylidene malonates

Zhuang,Hansen,Jorgensen

, p. 347 - 348 (2007/10/03)

A catalytic enantioselective alkylation of heteroaromatic compounds using alkylidene malonates has been developed; the reaction proceeds for different heteroaromatic compounds with alkylidene malonates in high yield and enantiomeric excess.

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