Welcome to LookChem.com Sign In|Join Free

CAS

  • or

54443-82-2

Post Buying Request

54443-82-2 Suppliers

Recommended suppliersmore

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

54443-82-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54443-82-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,4,4 and 3 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 54443-82:
(7*5)+(6*4)+(5*4)+(4*4)+(3*3)+(2*8)+(1*2)=122
122 % 10 = 2
So 54443-82-2 is a valid CAS Registry Number.

54443-82-2Relevant articles and documents

Method for synthesizing photoactive bromohydrin compound

-

, (2021/07/21)

The invention discloses a method for synthesizing a photoactive bromohydrin compound, which comprises the following steps: reacting cinnamyl alcohol as shown in a formula I, benzamide bromide as shown in a formula II, a quinine derivative, L-camphorsulfonic acid and water in a first organic solvent to obtain the bromohydrin compound as shown in a formula III. According to the method, raw materials are easy to synthesize, reaction conditions are mild, operation is easy and convenient, the yield reaches up to 47%-87%, enantioselectivity can generally reach 80% or above, and the highest point can even reach 95%.

A Simple and Efficient Access to Naphtho[b]furans by Claisen Rearrangement/Cyclization of Bromonaphthyl 3-Phenylallyl Ethers

Wang, Wei,Huang, Jin,Zhou, Rong,Jiang, Zhi-Jie,Fu, Hai-Yan,Zheng, Xue-Li,Chen, Hua,Li, Rui-Xiang

supporting information, p. 2442 - 2446 (2015/08/18)

A transition-metal-free Claisen rearrangement/cyclization reaction was developed for the synthesis of naphthofuran derivatives from bromonaphthyl 3-phenylallyl ethers. The nature of the base employed in this reaction plays an important role in determining the ratio for the formation of naphthofuran and naphthol products. By using K2CO3 as base and DMF as solvent, we have synthesized a variety of functionalized naphthofurans in good to high yields (49-92 %) and with satisfactory selectivities.

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 54443-82-2