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52095-39-3

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52095-39-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 52095-39-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,0,9 and 5 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 52095-39:
(7*5)+(6*2)+(5*0)+(4*9)+(3*5)+(2*3)+(1*9)=113
113 % 10 = 3
So 52095-39-3 is a valid CAS Registry Number.

52095-39-3Relevant articles and documents

Palladium-Catalyzed Tandem Hydrocarbonylative Lactamization and Cycloaddition Reaction for the Construction of Bridged Polycyclic Lactams

Xu, Pengcheng,Qian, Bo,Hu, Bin,Huang, Hanmin

supporting information, p. 147 - 151 (2022/01/04)

The intramolecular hydroaminocarbonylation of alkenes is a compelling tool to rapidly access lactam, a privileged motif ubiquitous in natural products, pharmaceuticals, and agrochemicals. However, selective carbonylation to bridged polycyclic lactams with a lactam nitrogen at a bridgehead position is less explored. We herein report a modular palladium-catalyzed approach to perform a tandem hydrocarbonylative lactamization/Diels-Alder cycloaddition reaction with 2-vinyl aryl aldimines, alkenes, and CO, which offers convenient access to furnish the bridged polycyclic lactams in high yields with high selectivities.

A metal-free method for the facile synthesis of indanonesviathe intramolecular hydroacylation of 2-vinylbenzaldehyde

He, Guoxue,Ma, Jinyu,Zhou, Jianhui,Li, Chunpu,Liu, Hong,Zhou, Yu

supporting information, p. 1036 - 1040 (2021/02/09)

A facile method for the synthesis of indanones was developed under metal- and additive-free conditions, whereinl-proline served as an efficient and environmentally benign catalyst. Compared with previously synthesized indanones, synthesis by the transition-metal-catalyzed intramolecular hydroacylation of 2-vinylbenzaldehyde provided a more green synthetic pathway to indanone scaffolds with good to excellent yields. More importantly, it could be used to synthsize the anti-AD drug donepezil.

Carbonylative cycloaddition between two different alkenes enabled by reactive directing groups: Expedited construction of bridged polycyclic skeletons

Gao, Bingjian,Zou, Suchen,Yang, Guoqing,Ding, Yongzheng,Huang, Hanmin

supporting information, p. 12198 - 12201 (2020/10/26)

A novel palladium-catalyzed highly selective hydrocarbonylative cycloaddition reaction with two different alkenes in the presence of CO enabled by a reactive directing-group is developed, which offers efficient and convenient access to lactone-containing bridged polycyclic compounds in high yield with high chemo- and stereoselectivities.

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