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59749-78-9

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59749-78-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 59749-78-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,9,7,4 and 9 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 59749-78:
(7*5)+(6*9)+(5*7)+(4*4)+(3*9)+(2*7)+(1*8)=189
189 % 10 = 9
So 59749-78-9 is a valid CAS Registry Number.

59749-78-9Relevant articles and documents

[Pd]-Catalyzed Intermolecular Coupling and Acid Mediated Intramolecular Cyclodehydration: One-Pot Synthesis of Indenes

Niharika, Pedireddi,Satyanarayana, Gedu

supporting information, p. 971 - 979 (2018/02/22)

An efficient one-pot synthesis of indenes from simple starting materials is presented. This process involves a dual C–C bond formation through an intermolecular Heck coupling reaction followed by acid-mediated intramolecular cyclodehydration. The strategy

Rhodium(II)- or Copper(I)-Catalyzed Formal Intramolecular Carbene Insertion into Vinylic C(sp2)?H Bonds: Access to Substituted 1H-Indenes

Zhou, Qi,Li, Shichao,Zhang, Yan,Wang, Jianbo

supporting information, p. 16013 - 16017 (2017/11/27)

A rhodium(II)- or copper(I)-catalyzed formal intramolecular carbene insertion into vinylic C(sp2)?H bonds is reported herein. This method provides straightforward access to 1H-indenes with high efficiency and excellent functional-group compatibility. Mechanistically, the reaction is proposed to involve the following sequence: metal carbene formation, intramolecular nucleophilic addition of the double bond to the electron-deficient carbene carbon atom, dearomatization, and finally a 1,5-H shift.

Synthesis of indenes via aluminum chloride-promoted tandem Friedel-Crafts alkylation of arenes and cinnamaldehydes

Kheira, Haiouani,Li, Pingfan,Xu, Jiaxi

, p. 168 - 174 (2014/06/09)

A series of substituted indenes were synthesized from arenes and cinnamaldehydes via aluminum chloride-promoted tandem Friedel-Crafts alkylation. The scope and limitation of the tandem reaction were explored. A plausible reaction mechanism is also discuss

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