Difference between revisions of "Rachel Sitko"

Revision as of 04:17, 7 May 2020

You have reached the personal account of Rachel Sitko

Personal Information

Year: Senior

Major: Chemistry

Minor: Mathematics

Hometown: Des Plaines, IL

Undergraduate Research Activities

Summer 2016: Summer Opportunity for Intellectual Activity (SOfIA) with Dr. Bradley Sturgeon & Dr. Laura Moore

Fall 2019-Spring 2020: Synthesis and Characterization of Lignin Monomers

Presentations

November 2019:

August 2016: SOfIA Presentation Poster Titles:

The Chemistry of Baking: The Basics
The Chemistry of Baking: Experiments

Interests/Activities

American Chemical Society

The Courier: Contributing Writer

Swimming

Pi Beta Phi

Career Plans

Interested in going back to school to receive a teaching license to become a high school chemistry teacher. Also looking into the Golden Apple Accelerators Program for teaching. Plan on working for IHSA refereeing for high school swim meets.

References

Simple Preparation of 8--5-coupled Diferulate

Structure-Activity Relationships

Lignin Biosynthesis and Structure

Oxidative Coupling during Lignin Polymerization is Determined by Unpaired Electron Delocalization within Parent Phenylpropanoid Radicals

[Overview from Lignin and Lignans: Advances in Chemistry]

Facile Large-Scale Synthesis of Coniferyl, Sinapyl, and p-Coumaryl Alcohol

@@ Line 14: / Line 14: @@
 '''Fall 2019-Spring 2020:'''  ''[[Synthesis and Characterization of Lignin Monomers]]''
-'''Abstract:''' Lignin is the second most abundant organic polymer. The structure of lignin is composed of three monomers: p-coumaryl alcohol, coniferyl alcohol, and sinapyl alcohol, which all are found in nature. These natural compounds are not cost friendly for undergraduate research. The carboxylic acid forms of these monomers (p-coumaric acid, ferulic acid, and sinapic acid) can be obtained commercially. This poster will discuss our synthetic approaches to produce the alcohol forms of lignin.
-'''Introduction:''' Ferulates play important roles in plant growth and undergo radical coupling reactions to produce dimers and cross-linking. Significant quantities are now required by cell wall researchers increasing the the large scale production of these ferulates and other lignins similar to their make up.
-{|
-|[[File:Lignin-precursors-p-coumaryl-alcohol-H.png|400px|thumb|left|Lignin Precursors]]
-|}
-'''Synthesis Mechanism:'''
-'''Synthesis:'''
-*'''Ethyl Ferulate:''' 10 g of ferulic acid dissolved in 100 mL ethanol and 5 mL of acetyl chloride. Solution stirred overnight. Volatiles removed by rotary evaporation (rotovap) at 40 C. (Ralph)
-*'''Esterification:''' 0.36 M ferulic acid in ethanol (500 mL) with concentrated HCl. Refluxed for two days. Cooled and ethanol evaporated under pressure (rotovap). Crude extract combined with ethyl acetate (250 mL). Solution dried over anhydrous MgSO<sub>4</sub>.
-'''Data:'''
-[[File:HPLC Data.jpg|400px]]
 == Presentations ==