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84666-28-4

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84666-28-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84666-28-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,6,6 and 6 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 84666-28:
(7*8)+(6*4)+(5*6)+(4*6)+(3*6)+(2*2)+(1*8)=164
164 % 10 = 4
So 84666-28-4 is a valid CAS Registry Number.

84666-28-4Relevant articles and documents

Synthesis and Photocleavage of Quinoline Methyl Ethers: A Mild and Efficient Method for the Selective Protection and Deprotection of the Alcohol Functionality

Provatas, Anthony A.,Epling, Gary A.,Stuart, James D.

, p. 763 - 769 (2016/08/09)

The synthesis and photocleavage of quinolinyl methyl ether-protected alcohols is reported in this study. A variety of quinoline methyl chlorides were synthesized, and protection of the various alcohols was performed via a substitution reaction in the presence of a strong base. Photocleavage of the quinolinyl methyl ether moiety proceeded under visible light with the formation of the charged quinolinyl radical intermediate through a single-electron transfer in the presence of a photosensitizer dye leading to the deprotected alcohol in excellent yields. The utility of triethylamine as a sacrificial reductant and d-sorbitol as a radical scavenger were also investigated in this study.

A NEW PHOTOCHEMICALLY REMOVABLE PROTECTING GROUP FOR AMINES

Epling, Gary A.,Walker, Mary E.

, p. 3843 - 3846 (2007/10/02)

A new arylmethylsulfonyl chloride reacts with secondary or primary amines to give sulfonamides which can be photochemically cleaved, making it suitable for use as a photoremovable protecting group.

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