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1257984-85-2

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1257984-85-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1257984-85-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,9,8 and 4 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1257984-85:
(9*1)+(8*2)+(7*5)+(6*7)+(5*9)+(4*8)+(3*4)+(2*8)+(1*5)=212
212 % 10 = 2
So 1257984-85-2 is a valid CAS Registry Number.

1257984-85-2Downstream Products

1257984-85-2Relevant articles and documents

Concise synthesis and applications of enantiopure spirobiphenoxasilin-diol and its related chiral ligands

Liu, Tao,Wang, Biqin,Wang, Peng,Wu, Yichen,Xu, Wen-Qiang,Yang, Lei

supporting information, p. 13365 - 13368 (2021/12/17)

The development of chiral architectures for chiral ligand and catalyst discovery is essential for asymmetric catalysis. Herein, we report the concise synthesis of a Si-centered spirocyclic skeleton, spirobiphenoxasilin-diol (SPOSiOL), and its derived chiral ligands. Using the chemical resolution method, the optical SPOSiOL could be obtained in high yield on a gram scale. Preliminary studies indicated that this ligand scaffold has great potential in transition metal-catalyzed asymmetric reactions. This finding further highlights that the Si-centered spirocyclic scaffolds are of great value in asymmetric catalysis. This journal is

DECARBOXYLATIVE CROSS-COUPLING AND APPLICATIONS THEREOF

-

Page/Page column 44, (2015/12/09)

Methods described herein enable the production of numerous molecular species through decarboxylative cross-coupling via use of photoredox and transition metal catalysts. For example, methods described herein enable the production of numerous molecular species through decarboxylative cross-coupling via use of photoredox and transition metal catalysts. A method described herein, in some embodiments, comprises providing a reaction mixture including a photoredox catalyst, a transition metal catalyst, a coupling partner and a substrate having a carboxyl group. The reaction mixture is irradiated with a radiation source resulting in cross-coupling of the substrate and coupling partner via a mechanism including decarboxylation, wherein the coupling partner is selected from the group consisting of a substituted aromatic compound and a substituted aliphatic compound.

Asymmetric palladium-catalyzed carboamination reactions for the synthesis of enantiomerically enriched 2-(Arylmethyl)- and 2-(Alkenylmethyl)pyrrolidines

Mai, Duy N.,Wolfe, John P.

supporting information; experimental part, p. 12157 - 12159 (2010/11/03)

The enantioselective synthesis of 2-(arylmethyl)- and 2-(alkenylmethyl) pyrrolidine derivatives via Pd-catalyzed alkene carboamination reactions is described. These transformations generate enantiomerically enriched products with up to 94% ee from readily

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