Welcome to LookChem.com Sign In|Join Free

CAS

  • or

3923-14-6

Post Buying Request

3923-14-6 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

3923-14-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3923-14-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,2 and 3 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 3923-14:
(6*3)+(5*9)+(4*2)+(3*3)+(2*1)+(1*4)=86
86 % 10 = 6
So 3923-14-6 is a valid CAS Registry Number.

3923-14-6Downstream Products

3923-14-6Relevant articles and documents

Tandem oxidation/cyclization reaction of 4-(arylmethyl)oxy-2-diazobutyrate derivatives

Kondo, Hideaki,Nagano, Shuji,Yamakoshi, Hiroyuki,Nakamura, Seiichi

, p. 894 - 915 (2019/04/26)

A tandem oxidation/cyclization reaction of γ-(arylmethyl)oxy-α-di-azobutyrate derivatives was investigated. While oxidative cleavage of the PMB ether was only observed upon treatment of an α-diazo-β-ketoester with DDQ, oxidation of α-diazo esters with an

Construction of 2-substituted-3-functionalized benzofurans via intramolecular heck coupling: Application to enantioselective total synthesis of daphnodorin B

Yuan, Hu,Bi, Kai-Jian,Li, Bo,Yue, Rong-Cai,Ye, Ji,Shen, Yun-Heng,Shan, Lei,Jin, Hui-Zi,Sun, Qing-Yan,Zhang, Wei-Dong

supporting information, p. 4742 - 4745 (2013/10/08)

A novel approach was developed for the synthesis of 2-substituted-3- functionalized benzofurans, using an intramolecular Heck reaction which was further applied in the first enantioselective total synthesis of Daphnodorin B.

Iron-catalyzed tandem oxidative coupling and annulation: An efficient approach to construct polysubstituted benzofurans

Guo, Xingwei,Yu, Rong,Li, Haijun,Li, Zhiping

supporting information; experimental part, p. 17387 - 17393 (2010/03/23)

The combination of FeCl3·6H2O and di-tert-butyl peroxide offers a novel and efficient method for the construction of polysubstituted benzofurans 3 from the reaction of simple phenols 1 and β-keto esters 2, which are expected to give coumarins in the well-known Pechmann condensation. A variety of phenols reacted with β-keto esters to provide a range of benzofuran products in moderate to excellent yields. The regio-specific annulation was proven by the X-ray molecular structure of the product 3k. Hydrate of FeCl3 is essential for an achievement of the present transformation. The kinetic isotopic effect (KIE) experiments were carried out by competition experiments and displayed a kH/k D = 1.0 ± 0.1. The kinetic isotopic effect indicated that aromatic C-H bond cleavage is not involved in the rate-determining steps of the present transformation. Moreover, the results clearly demonstrate that the dichotomous catalytic behavior of the iron catalyst, which is transition-metal catalyst in the oxidative coupling step and Lewis acid in the condensation step. The possible intermediate 5 was synthesized and converted into the desired benzofuran 3a under the reaction conditions. A tentative mechanism of the formation of benzofurans 3 was proposed.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 3923-14-6