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21213-15-0

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21213-15-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21213-15-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,2,1 and 3 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 21213-15:
(7*2)+(6*1)+(5*2)+(4*1)+(3*3)+(2*1)+(1*5)=50
50 % 10 = 0
So 21213-15-0 is a valid CAS Registry Number.

21213-15-0Relevant articles and documents

METHOD FOR PRODUCING SULFONIUM SALT

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Paragraph 0060, (2020/02/26)

PROBLEM TO BE SOLVED: To provide a simple method for producing a sulfonium salt useful as a quencher, in which the structure of sulfonium is not limited but is especially a triarylsulfonium having an arylthio group(s) and which has an anionic residue of s

Palladium/PC-Phos-Catalyzed Enantioselective Arylation of General Sulfenate Anions: Scope and Synthetic Applications

Wang, Lei,Chen, Mingjie,Zhang, Peichao,Li, Wenbo,Zhang, Junliang

, p. 3467 - 3473 (2018/03/13)

Herein we reported an efficient palladium-catalyzed enantioselective arylation of both alkyl and aryl sulfenate anions to deliver various chiral sulfoxides in good yields (up to 98%) with excellent enantioselectivities (up to 99% ee) by the use of our developed chiral O,P-ligands (PC-Phos). PC-Phos are easily prepared in short steps from inexpensive commercially available starting materials. The single-crystal structure of the PC4/PdCl2 showed that a rarely observed 11-membered ring was formed via the O,P-coordination with the palladium(II) center. The salient features of this method include general substrate scope, ease of scale-up, applicable to the late-stage modification of bioactive compounds, and the synthesis of a marketed medicine Sulindac.

SULFONIUM SALT, PHOTO-ACID GENERATOR, AND PHOTOSENSITIVE RESIN COMPOSITION

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Page/Page column 30, (2012/01/11)

There is provided a sulfonium salt having high photosensitivity to the i--line. The invention relates to a sulfonium salt represented by formula (1) described below: [in formula (1), R1 to R6 each independently represent an alkyl gro

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