Green Chemistry (Chemistry 442), Fall

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Green Chemistry (Chemistry 442), Fall- 2015

M, W & F : 10:00--- 10:50, Room S-215

Tuesday : 11:00---12:30, Lab----S-135

Course Code & Title : Chem-442 Green Chemistry

Credit Hours: 4

INSTRUCTOR INFORMATION:

Dr Seemal Jelani

Associate Professor

Department of Chemistry

Room# 163 Armacost Building

Tel:99231581 Ext: 595

Cell: 03004194687 seemaljelani@fccollege.edu.pk

Course Description:

To understand the environmental consequences of chemical manufacturing and illustrate how these may be minimized.

Content

Application of innovative technology to established industrial processes, environmentally improved routes to important products, design of new green chemicals and materials, sustainable resources, biotechnology alternatives, evaluation of environmental impact.

See drseemaljelani.wordpress.com

course website for more information.

This course covers the most significant emerging field in modern chemistry, namely,

Green chemistry, the field which focuses upon the reinvention of chemistry such that pollution can be avoided. The chemical nature and action of pollutants of the atmosphere, land, and water sources will be presented along with prospects for their minimization, and approaches for their eradication. Examples of successful green chemistry developments will be highlighted. Themes woven throughout the course include emerging concepts for guiding green chemistry, environmental toxicology, the development of green oxidants, and an identification of toxins, especially persistent toxins, where elimination will require new green chemistry. A significant effort has been made to produce a course suitable for an interdisciplinary audience and recent classes have come from diverse backgrounds throughout the university.

The course aims to:

The ultimate aim of green chemistry is to entirely cut down the stream of chemicals pouring into the environment

To think prospectively about how to change our education subjects to be sustainable learning tools by Investigating examples of green chemistry applications relevant to students

Green Chemistry (Chemistry 442), Fall- 2015

To understand the important role of the green chemistry and how to deal with it in our practical life

Teach the fundamentals of greener chemical processes including the political

 and environmental drivers that impact on the chemical industry.

 Familiarize students with legislation and control of hazardous substances.

 Provide students with the skills to propose a synthetic plan for any molecule

Give the students the opportunity to perform research work as part of an active research group within the Department.

 Prepare students for employment as scientists in industry, academia or a research institute by direct entry or following further study.

 Microwave mediated reactions

 Applications of photochemistry, electrochemistry, sonochemistry and other alternative resources for greener applications (like fuel cells)

 The applications of hydrogen peroxide as greener solvents

Student Learning Objectives:

1. Understand and identify structure/function relationships with respect to chemical properties, biological activity, and product performance. Be able to rank competing synthetic methods using the twelve principles of Green Chemistry along with other technical metrics

2. To understand the environmental consequences of chemical manufacturing and illustrate how these may be minimized

3. Introduce the 12 principles of green chemistry as well as the tools of green chemistry including the use of alternative feedstocks or starting material reagents, solvents, target molecules, and catalysts.

4. Demonstrate an understanding of green approaches to industrial scale chemical processes.

5. Show knowledge of specific green alternatives including alternative solvents, reactor design, atom efficient reactions, energy issues and full life cycle analysis.

6. Propose possible synthetic routes for almost any chemical.

7. Recognize and understand the major methods of separation, purification, and characterization of compounds.

8. Use scientific skills in a research project on green chemistry.

9. Demonstrate transferable skills in oral presentation, report writing and the use of information technology.

10. Students will understand how to assess the environmental impact of chemical operations and understand the methods for their minimization and be able to suggest alternative green methods to current processes .

Course Evaluation :

Weekly Assignments :

The assignments for the class will focus on developing good presentation skills and developing the ability to critically evaluate the literature. Detailed descriptions of the assignments will be posted on the course website.

Literature Summaries :

Green Chemistry (Chemistry 442), Fall- 2015

Every Monday, one quarter of the class will be expected to turn in a typed summary of one of the journal articles assigned for the prior week and to lead the discussion of the articles during Monday’s class. These summaries will follow an online discussion outside of the classroom, using the Blackboard environment as a tool to facilitate discussion during the previous week. Please refer to the handout

Everyone is expected to come to class prepared to discuss the journal articles assigned for that week.

Midterm Paper:

Midterm paper critiquing a specific recent development in green chemistry will be due at the end of the midterm week. Students are encouraged to refer to Real World

Cases in Green Chemistry for an example on how to structure the paper. The paper can be written as if it were an additional chapter in the book. Topics are easily found from other or more recent Presidential Green Chemistry Awards that are not covered in the text.

Final Project :

The final project for the course will be a 15 minute in class presentation of your critical evaluation of a green chemical process or procedure that was recently developed. These critiques should closely follow the outline used in each Chapter of

Real World Cases in Green Chemistry. Homework assignments throughout the course will be geared towards helping you to assemble and prepare this 15 minute

PowerPoint presentation.

Green Chemistry presentation rubric student performance will be on individual basis

Green chemistry project rubric will be on individual basis

Green week

Green chemistry Wiki project : A Wiki is a self-made website. Students will be researching an environmentally unfriendly product (conventional product) and comparing it to its green , environmentally friendly, counterpart (innovative product).

They will be using www.wikispaces.com

COURSE EVALUATION (It can be altered)

ACTIVITY TO BE ASSESSED WEIGHTAGE (% AGE)

Final Exams: 30%

Mid exams:

Laboratory work and write ups:

Class quizzes:

Green Chemistry presentation

15%

20%

07%

Attendance:

08%

Green chemistry project 08%

Green chemistry Wiki project 07%

05%

Total 100%

Laboratory work:

1. 12 Principles of Green Chemistry and how to introduce and explain them

Green Chemistry (Chemistry 442), Fall- 2015

2. Essential Oil Extraction using Liquid CO

2

3. Acetylation of primary amine (Preparation of acetanilide ) Conventional

Procedure; Alternative Green Procedure

4. Recycling Polylactic Acid

5. Water based organic synthesis

6. Synthetic route for different polymers using green resources

7. Reaction involving renewable resources

Green Chemistry (Chemistry 442), Fall- 2015

CHEM-442 GREEN CHEMISTRY

1. INTRODUCTION AND PRINCIPLES OF SUSTAINABLE AND GREEN

CHEMISTRY

Green chemistry and industry

Waste minimization and atom economy

Reduction of materials use,

Reduction of non-renewable raw material use

Reduction of energy requirement

Inherently safe design

Alternative solvents

1. GREEN CHEMISTRY AND SUSTAINABLE DEVELOPMENT

The Concept of Sustainability

Green Chemistry and Sustainability Parameters

Sustainable use of chemical feedstock

Sustainable use of water

Sustainable use of energy

Environmental resilience

Life-cycle Assessment (As a Tool for Identification of More Sustainable Products and Processes)

2. INDUSTRIAL PROCESSES USING CATALYSTS

Zeolite-based solid acid catalysts

Heteropolyacid-based solid acid catalysts

Sulfated zirconia

Ion-exchange resins

Acidic and pillared clays

Silica nanocomposite

high-octane fuels

Waste Minimization in Industry (by Means of purification, Choice of starting material, Yields, Number and order of steps, Robustness, Solvents, Reagents,

Reaction temperature, Heavy metals, Endurance etc.)

3. POLYMER-SUPPORTED REAGENTS

Green Chemistry (Chemistry 442), Fall- 2015

Polymeric tools for organic synthesis

Copolymerisation with usual Monomers (Polystyrenes, Polyacrylates,

Polyvinylpyridines,

Chlorofluoropolymers)

Polybenzimidazoles, Polyphosphazenes,

4. BIOCATALYSIS

Chemical Production by Biocatalysis

(Pharmaceuticals, Flavours and fragrance compounds, Carbohydrates)

Biodesulfurisation

5. RECENT ADVANCES IN PHASE-TRANSFER CATALYSIS

Progress in Classical PTC Reactions

Nucleophilic aliphatic and aromatic substitutions

Phase-transfer catalysis elimination and isomerisation reactions

Base-promoted C, N, O and S alkylation and arylation reactions

Inverse PTC

Three Liquid Phases and Triphase Catalysis

Asymmetric PTC

Phase-transfer Catalysis in Polymerization Processes

Applications of PTC in Analytical Chemistry

Phase Transfer Combined with Metal Catalysis

Phase transfer in homogeneous transition metal catalysis

Hydrogen Peroxide and Other PTC Oxidations and Halogenations

Supercritical and Ionic Liquid PTC

6. POTENTIAL CONTRIBUTIONS OF HYDROGEN PEROXIDE

Manufacture of hydrogen peroxide

Uses of hydrogen peroxide

Peroxygen Systems and their Reactivity

Effect of acids and bases

Oxygen species

Per-acids and organic activation

Catalytic activation

Peroxo

–metal systems

Enzymes

7. APPLICATIONS OF MICROWAVES FOR ENVIRONMENTALLY BENIGN

SYNTHESES

Background

Properties of Microwaves

Influence of Microwave Heating on Chemical Reactions

 Rate Studies and Investigations into ‘Microwave Effects’

Green Chemistry (Chemistry 442), Fall- 2015

Approaches to Microwave assisted Organic Chemistry

Solvent-free methods

Methods with solvents

Advantages of the Pressurized Microwave Systems

Elevated temperature

Rapid heating

cooling and ease of use for high-temperature reactions

Control of heating

Exothermic reactions

differential heating and viscous reaction mixtures

Reaction vessels

Reactions with a distillation step

Flexible operation High-temperature Water as a Medium or Solvent for

Microwave-assisted Organic Synthesis

SPECIAL TOPICS

Photochemistry

Electrochemistry

Fuel Cells for greener chemistry applications

CHEM-442 LAB ACTIVITIES

1. Water based organic synthesis

2. PTC based transformations

3. Microwave radiated reactions

4. Synthetic route for different polymers using green resources

5. Reaction involving renewable resources

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