Integrated SequencePhysics Chemistry Organic Biology

Web Resources

  click if a link is broken

Special points of emphasis

The Chemical Bond

Chemical Kinetics

Reactions of Alkyl Halides

E2 elimination exhibits second order kinetics, first order in alkyl halide and first order in base. If the concentration of base does not affect the reaction rate, the mechanism is not E2 elimination, but E1.

The MCAT is fond of questions of stereoselectivity, which always go back to the mechanism. Remember that in order for the transition state to be stabilized by partial π bond formation, the H-C-C-X bonds must lie in the same plane in the transition state, either syn periplanar or anti periplanar with the anti conformation the more stable because bonds are not eclipsed in the anti periplanar conformation.

The WikiPremed MCAT Course is a free comprehensive course in the undergraduate level general sciences. Undergraduate level physics, chemistry, organic chemistry and biology are presented by this course as a unified whole within a spiraling curriculum.

Please read our policies on privacy and shipping & returns.  Contact Us.
MCAT is a registered trademark of the Association of American Medical Colleges, which does not endorse the WikiPremed Course.

Creative Commons License
The work of WikiPremed is published under a Creative Commons Attribution Share Alike 3.0 License. There are elements of work here, such as a subset of the images in the archive from WikiPedia, that originated as GNU General Public License works, so take care to follow the unique stipulations of that license in printed reproductions. You can use the resources here for commercial or non-commercial purposes, but please give attribution and a link to the production credits and edit history of the resource. For the works here which began as my individual work, please attribute "John Wetzel, an author at".