Welcome to LookChem.com Sign In|Join Free
  • or
4-nitro-benzoic acid-(1-methyl-prop-2-ynyl ester) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

99972-67-5

Post Buying Request

99972-67-5 Suppliers

Recommended suppliers

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

99972-67-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99972-67-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,9,7 and 2 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 99972-67:
(7*9)+(6*9)+(5*9)+(4*7)+(3*2)+(2*6)+(1*7)=215
215 % 10 = 5
So 99972-67-5 is a valid CAS Registry Number.

99972-67-5Relevant academic research and scientific papers

1,2-Dibromoalkanes into alkynes by elimination reaction under DBU conditions and their application to total synthesis of sapinofuranone B

Kutsumura, Noriki,Yokoyama, Tadashi,Ohgiya, Tadaaki,Nishiyama, Shigeru

, p. 4133 - 4136 (2006)

Treatment of 1,2-dibromoalkanes with DBU effected an elimination reaction, leading to the alkynes. Oxygen substitution at the C3 position plays a critical role to abstract protons by inductive effects. By the application of this protocol, a total synthesi

Efficient synthesis of propargylic ethers under the DBU conditions and its application to natural products synthesis

Yokoyama, Tadashi,Kutsumura, Noriki,Ohgiya, Tadaaki,Nishiyama, Shigeru

, p. 578 - 582 (2008/02/11)

Conversion of dibromides carrying O-functional groups at adjacent positions to the corresponding propargylic ethers was successfully carried out under the DBU conditions through 2-bromo-1-alkenes as intermediates. The optically active γ-lactone-class natural products, such as (-)-muricatacin (4) and (R,R)-sapinofuranone B (5) were synthesized using the propargylic ether intermediate produced by the elimination reaction mentioned above.

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 Customer Service

What can I do for you?
Get Best Price

Get Best Price for 99972-67-5