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22101-32-2

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22101-32-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22101-32-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,1,0 and 1 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 22101-32:
(7*2)+(6*2)+(5*1)+(4*0)+(3*1)+(2*3)+(1*2)=42
42 % 10 = 2
So 22101-32-2 is a valid CAS Registry Number.

22101-32-2Relevant articles and documents

The Concept of Photozymes: Short Peptides with Photoredox Catalytic Activity for Nucleophilic Additions to α-Phenyl Styrenes

Sack, Daniel,Wagenknecht, Hans-Achim

, p. 6400 - 6407 (2021/11/18)

Conventional photoredox catalytic additions of alcohols to olefins require additives, like thiophenol, to promote back electron transfer. The concept of “photozymes” assumes that forward and backward electron transfer steps in a photoredox catalytic cycle

Branched Arylalkenes from Cinnamates: Selectivity Inversion in Heck Reactions by Carboxylates as Deciduous Directing Groups

Tang, Jie,Hackenberger, Dagmar,Goossen, Lukas J.

supporting information, p. 11296 - 11299 (2016/10/13)

A decarboxylative Mizoroki–Heck coupling of aryl halides with cinnamic acids has been developed in which the carboxylate group directs the arylation into its β-position before being tracelessly removed through protodecarboxylation. In the presence of a copper/palladium catalyst, both electron-rich and electron-deficient aryl bromides and chlorides bearing numerous functionalities were successfully coupled with broadly available cinnamates, with selective formation of 1,1-disubstituted alkenes. This reaction concept, in which the carboxylate acts as a deciduous directing group, ideally complements traditional 1,2-selective Heck reactions of styrenes.

Stereoselectivity of methyl aryldiazoacetate cyclopropanations of 1,1-diarylethylene. Asymmetric synthesis of a cyclopropyl analogue of tamoxifen.

Davies,Nagashima,Klino 3rd.

, p. 823 - 826 (2007/10/03)

[formula: see text] Dirhodium tetrakis(S-(N-dodecylbenzenesulfonyl)prolinate) (Rh2(S-DOSP)4)-catalyzed decomposition of methyl phenyldiazoacetate in the presence of 1,1-diarylethylenes results in intermolecular cyclopropanation with high enantioselectivity (up to 99% ee) and moderate diastereoselectivity (up to 80% de). The reaction was applied to the asymmetric synthesis of a cyclopropyl analogue of tamoxifen.

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