Welcome to LookChem.com Sign In|Join Free

CAS

  • or

77509-36-5

Post Buying Request

77509-36-5 Suppliers

Recommended suppliersmore

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

77509-36-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77509-36-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,5,0 and 9 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 77509-36:
(7*7)+(6*7)+(5*5)+(4*0)+(3*9)+(2*3)+(1*6)=155
155 % 10 = 5
So 77509-36-5 is a valid CAS Registry Number.

77509-36-5Relevant articles and documents

Synthesis of Functionalized Dihydrocoumarins by NHC-Catalyzed [3 + 3] Annulation of Enals with 2-Substituted Naphthoquinones

Shee, Sayan,Barik, Soumen,Ghosh, Arghya,Biju, Akkattu T.

supporting information, p. 8039 - 8044 (2021/10/20)

The [3 + 3] annulation of α,β-unsaturated aldehydes with 2-substituted 1,4-naphthoquinones allowing the facile synthesis of functionalized dihydrocoumarins catalyzed by N-heterocyclic carbene (NHC) is reported. The initially formed NHC-homoenolates underwent an efficient Michael-isomerization-lactonization cascade to furnish the products. Preliminary studies on mechanism shed light on the homoenolate pathway over the intermediacy of the α,β-unsaturated acylazolium intermediates. Moreover, using chiral NHCs, the desired products were formed in up to 49% yield and 99:1 er.

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 77509-36-5