Welcome to LookChem.com Sign In|Join Free
  • or
Bretonin B is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

137623-93-9

Post Buying Request

137623-93-9 Suppliers

Recommended suppliers

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

137623-93-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137623-93-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,6,2 and 3 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 137623-93:
(8*1)+(7*3)+(6*7)+(5*6)+(4*2)+(3*3)+(2*9)+(1*3)=139
139 % 10 = 9
So 137623-93-9 is a valid CAS Registry Number.

137623-93-9Relevant academic research and scientific papers

Stereoselective Synthesis of Conjugated Polyenes Based on Tethered Olefin Metathesis and Carbonyl Olefination: Application to the Total Synthesis of (+)-Bretonin B

Lood, Kajsa,Schmidt, Bernd

, p. 5122 - 5130 (2020/05/01)

The combination of a highly stereoselective tethered olefin metathesis reaction and a Julia-Kocienski olefination is presented as a strategy for the synthesis of conjugated polyenes with at least one Z-configured Ca?C bond. The strategy is exemplified by the synthesis of the marine natural product (+)-bretonin B.

Total synthesis of (+)-bretonin B: Access to the (E,Z,E)-triene core by a late-stage Peterson elimination of a convergently assembled silyl ether

Neubauer, Thomas,Kammerer-Pentier, Claire,Bach, Thorsten

, p. 11629 - 11631,3 (2012/12/12)

The title compound was synthesised in a concise route (nine linear steps, 31% overall yield) employing an α-silyl epoxide ring opening, a Julia-Kocienski olefination and a late-stage Peterson elimination as key steps.

Total synthesis of (+)-bretonin B: Access to the (E,Z,E)-triene core by a late-stage Peterson elimination of a convergently assembled silyl ether

Neubauer, Thomas,Kammerer-Pentier, Claire,Bach, Thorsten

, p. 11629 - 11631 (2013/01/15)

The title compound was synthesised in a concise route (nine linear steps, 31% overall yield) employing an α-silyl epoxide ring opening, a Julia-Kocienski olefination and a late-stage Peterson elimination as key steps.

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 137623-93-9