CHEM 2331H Study Guide - Midterm Guide: Dimethyl Sulfoxide, Second Order (Religious), Azide
Document Summary
*finalexam2 problem 7 mechanism: can enlarge ring in an e1 rxn (1,2 alkyl shift), relives ring strain. Stereoisomers (differences between each types and how to distinguish them, all the processes) If need to draw these, 1st try drawing single long chain then for 2nd one, try branches/rings: stereoisomers: isomers that differ only in orientation of atoms in space; same connectivity, different spatial. If molecule has no chiral centers, almost always achiral. Odd # chiral centers always chiral. Even # chiral centers may or may not be chiral. Leaving group: group that leaves once nucleophile attacks: good leaving groups (according to. Hammond postulate: 1) wants to take electrons (electronegative) Generates alkene (most stable alkene product: proton must be 1 c away from ( to) leaving group (so steric hindrance around leaving group doesn"t matter as much) *some groups can be good nucleophiles and good leaving groups: 3) products are stable; rxn shouldn"t be able to work better in reverse.
