CHEM 241 Lecture Notes - Lecture 6: Methyl Iodide, Substituent, Stereocenter

• School: Drexel University
• Department: Chemistry
• Course: CHEM 241
• Professor: Rutkowsky Susan

Document Summary

Have been used extensively as solvents (ccl4 was used for dry cleaning) Common names are derived from the alkyl group followed by the name of the halide (methyl iodide, tert-butyl bromide) The iupac system treats the halides as substituents of an alkane framework: The base name comes from the longest carbon chain. Number the chain so that the substituent is closest to c-1. Name the substituents as alkyl groups, halogens etc. Arrange the substituents in alphabetical order and use prefixes for multiple substituents. Separate sequential numbers with , and separate words by . Stereogenic centers are labeled as r or s and placed in brackets before the name. With multiple stereocenters include the carbon number and arrange in increasing number within brackets. Draw the following alkyl halides: (r) 3-chloro-2-methyl-2-phenylhexane. Lower homologues are gases, then liquids, and solids (high mwts) The bp increases with increasing mwt and generally follows the same trends as alkanes.