Welcome to LookChem.com Sign In|Join Free

CAS

  • or

27798-41-0

Post Buying Request

27798-41-0 Suppliers

Recommended suppliersmore

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

27798-41-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 27798-41-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,7,9 and 8 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 27798-41:
(7*2)+(6*7)+(5*7)+(4*9)+(3*8)+(2*4)+(1*1)=160
160 % 10 = 0
So 27798-41-0 is a valid CAS Registry Number.

27798-41-0Relevant articles and documents

Benzylic aroylation of toluenes with unactivated tertiary benzamides promoted by directed ortho-lithiation

Bao, Can-Can,Luo, Yan-Long,Du, Hui-Zhen,Guan, Bing-Tao

, p. 1349 - 1354 (2021/07/12)

The deprotonative functionalization of toluenes, for their weak acidity, generally needs strong bases, thus leading to the requirement of harsh conditions and the generation of by-products. Direct nucleophilic acyl substitution reaction of amides with organometallic reagents could provide an ideal solution for ketone synthesis. However, the inert amides and highly reactive organometallic reagents bring great challenges for an efficient and selective synthetic approach. Herein, we reported an lithium diisopropylamide (LDA)-promoted benzylic aroylation of toluenes with unactivated tertiary benzamides, providing a direct and efficient synthesis of various aryl benzyl ketones. This process features a kinetic deprotonative functionalization of toluenes with a readily available base LDA. Mechanism studies revealed that the directed ortho-lithiation of the tertiary benzamide with LDA promoted the benzylic kinetic deprotonation of toluene and triggered the nucleophilic acyl substitution reaction with the amide. [Figure not available: see fulltext.].

Exploiting Aryl Mesylates and Tosylates in Catalytic Mono-α-arylation of Aryl- and Heteroarylketones

Fu, Wai Chung,So, Chau Ming,Yuen, On Ying,Lee, Irene Toi Chuk,Kwong, Fuk Yee

supporting information, p. 1872 - 1875 (2016/05/19)

The first general palladium catalyst for the catalytic mono-α-arylation of aryl- and heteroarylketones with aryl mesylates and tosylates is described. The newly developed indolyl-derived phosphine ligand L7 has been identified to promote this reaction eff

Palladium-catalyzed carbonylative suzuki coupling of benzyl halides with potassium aryltrifluoroborates in aqueous media

Wu, Xiao-Feng,Neumann, Helfried,Beller, Matthias

experimental part, p. 788 - 792 (2011/05/15)

A general palladium-catalyzed carbonylative cross-coupling reaction of benzyl chlorides with potassium aryltrifluoroborates in water has been developed. Applying this improved methodology 16 different 1,2-diarylethanones have been synthesized in 40-89% yield. Copyright

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 27798-41-0