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19803-05-5

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19803-05-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19803-05-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,8,0 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 19803-05:
(7*1)+(6*9)+(5*8)+(4*0)+(3*3)+(2*0)+(1*5)=115
115 % 10 = 5
So 19803-05-5 is a valid CAS Registry Number.

19803-05-5Relevant articles and documents

Aerobic Oxidation of Olefins and Lignin Model Compounds Using Photogenerated Phthalimide-N-oxyl Radical

Luo, Jian,Zhang, Jian

, p. 9131 - 9137 (2016)

A metal-free protocol to generate phthalimide-N-oxyl (PINO) radicals from N-hydroxyphthalimide (NHPI) via a photoinduced proton-coupled electron transfer process is reported. Using donor-substituted aromatic ketones, such as 4,4′-bis(diphenylamino)benzophenone (DPA-BP), PINO radicals are efficiently produced and subsequently utilized to functionalize olefins to afford a new class of alkyl hydroperoxides. The DPA-BP/NHPI/O2 photocatalytic system exhibits high efficiency toward the aerobic oxidation of β-O-4 lignin models.

Visible light induced redox neutral fragmentation of 1,2-diol derivatives

Chen, Kang,Schwarz, Johanna,Karl, Tobias A.,Chatterjee, Anamitra,K?nig, Burkhard

supporting information, p. 13144 - 13147 (2019/11/11)

A homogeneous, redox-neutral photo fragmentation of diol derivatives was developed. Under photo/hydrogen atom transfer (HAT) dual catalysis, diol derivatives such as lignin model compounds and diol monoesters undergo selective β C(sp3)-O bond cleavage to afford ketones, phenols and acids effectively.

Hypervalent iodine in organic synthesis : Convenient and general procedures for α-functionalisation of ketones

Prakash, Om,Saini, Neena,Sharma, Pawan Kumar

, p. 129 - 132 (2007/10/03)

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