Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1423165-85-8

Post Buying Request

1423165-85-8 Suppliers

Recommended suppliersmore

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

1423165-85-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1423165-85-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,3,1,6 and 5 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1423165-85:
(9*1)+(8*4)+(7*2)+(6*3)+(5*1)+(4*6)+(3*5)+(2*8)+(1*5)=138
138 % 10 = 8
So 1423165-85-8 is a valid CAS Registry Number.

1423165-85-8Relevant articles and documents

Syntheses of five- and seven-membered ring sultam derivatives by Michael addition and Baylis-Hillman reactions

Tong, Kun,Tu, Jinchang,Qi, Xueyong,Wang, Min,Wang, Yanjie,Fu, Haizhen,Pittman Jr., Charles U.,Zhou, Aihua

, p. 2369 - 2375 (2013/03/29)

Five- and seven-membered sultam derivatives were conveniently synthesized via intra- or intermolecular Michael additions and an improved vinyl sulfonamide Baylis-Hillman reaction. Two different cyclization pathways were explored for the oxa-Michael reaction. A good solvent was discovered for an otherwise sluggish ketone-type Baylis-Hillman reaction in which vinyl sulfonamide ketones were used as the precursors. Furthermore, a strong base caused vinyl sulfonamide ketones to undergo 5-endo-trig intramolecular cyclizations, which are disfavored according to Baldwin's rule. Finally Baylis-Hillman reaction products were used as scaffolds for diversity-oriented sultam syntheses.

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 1423165-85-8