Chem Connections


Malathion, Medflies and Medicines

Pesticide Image


his module undertakes the study of selected synthetic and semisynthetic bioactive compounds containing phosphoryl or sulfuryl groups used for pest control or as drugs. The addition-elimination chemistry exhibited by these compounds will be examined in the context of their fate in the environment (pesticides) or in the human body (drugs).

6-8 (3-4 hr) labs, 8-10 class sessions

Prerequisites: Introductory Level II
Initial Testing: Fall '96
Tool Kit: Structure and Bonding, Dynamics, Laboratory Procedures, Experimental Design, Laboratory Procedures, Data Analysis, Accessing Information, Communicating Results
Topics: bonding, stereochemistry, reaction rates, catalysis and inhibition, stereoselectivity, analytical and synthitic methods, formulating the problem, computer/library searching (CA and Internet), oral and written reports
Interdisciplinary aspects: Medicinal Chemistry, Toxicology, Ecology, Public Policy
Contra Costa College:
Leverett Smith, lsmith@viking.dvc.edu
Diablo Valley College:
Ron Rusay, rrusay@viking.dvc.edu
Interdisciplinary consultant:
John Casida, Environmental Science, Policy, and Management, UC Berkeley

Description

This module undertakes the study of selected synthetic and semisynthetic bioactive compounds used as drugs or for pest control. It takes compound uses and the addition-elimination substitution reactions at coordinatively unsaturated carbon, sulfur, and phosphorous centers as unifying themes. We will look at both the formation and the breakdown of a variety of medicinal and pesticidal compounds. As interdisciplinary themes, the module explores the role of synthetic chemistry in modifying those personal aspects of our environment that affect our health and our food supply, while we modify our human situation via "synthetic chemical ecology".

Materials to be developed

Multimedia Materials

  • Molecular database of organic compounds used in medicine and agriculture
  • Transparencies
  • Video presenting analytical techniques

Standard Materials

  • Background readings, materials to guide class discussions and related in-class activities
  • Materials to guide class discussions
  • Sample homework, exams, and lab report formats


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