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223691-88-1

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223691-88-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 223691-88-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,6,9 and 1 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 223691-88:
(8*2)+(7*2)+(6*3)+(5*6)+(4*9)+(3*1)+(2*8)+(1*8)=141
141 % 10 = 1
So 223691-88-1 is a valid CAS Registry Number.

223691-88-1Relevant articles and documents

Regioselective molybdenum-catalyzed allylic substitution of tertiary allylic electrophiles: Methodology development and applications

Khan, Ajmal,Khan, Shahid,Salman, Muhammad,Xu, Yaoyao,Zhang, Junjie

, p. 5481 - 5486 (2020/06/10)

The first molybdenum-catalyzed allylic sulfonylation of tertiary allylic electrophiles is described. The method employs a readily accessible catalyst (Mo(CO)6/2,2′-bipyridine, both are commercially available) and represents the first example of the use of a group 6 transition metal-catalyst for allylic sulfonylation of substituted tertiary allylic electrophiles to form carbon-sulfur bonds. This atom economic and operationally simple methodology is characterized by its relatively mild conditions, wide substrate scope, and excellent regioselectivity profile, thus unlocking a new platform to forge sulfone moieties, even in the context of late-stage functionalization and providing ample opportunities for further derivatization through traditional Suzuki cross-coupling reactions.

A short synthesis of (±)-sporochnol A, a chemical fish deterrent from a Caribbean marine alga

Avila-Zarraga, J. Gustavo,Barroso, Mario,Covarrubias-Zuniga, Adrian,Romero-Ortega, Moises

, p. 389 - 395 (2007/10/03)

A short formal synthesis of (±)-sporochnol A (1) is described. In this synthesis, the quaternary carbon center is formed by successive alkylations of the carbanion a to the nitrile in an arylacetonitrile derivative, followed by conversion of the nitrile g

Total synthesis of sporochnols, fish deterrents from a marine alga

Ohira, Susumu,Kuboki, Atsuhito,Hasegawa, Taisuke,Kikuchi, Takato,Kutsukake, Tatsuhiko,Nomura, Maki

, p. 4641 - 4644 (2007/10/03)

Sporochnols, fish deterrents from a marine alga, were synthesized, using intramolecular C-H insertion of alkylidenecarbene as a key step to construct the chiral quaternary center.

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