CAS CH 172 Lecture Notes - Lecture 2: Propyl Group, Chemical Formula, Pentane

• School: Boston University
• Department: Chemistry
• Course: CAS CH 172
• Professor: Allison Lamanna

Document Summary

Every carbon on the end is bonded to one carbon and three hydrogens. Every carbon in the middle is bonded to two carbons and two hydrogens. No matter what, the carbons have 4 bonds. Prefix root ending: root = number of carbons in the amino acid, ending functional groups. Alkanes = saturated hydrocarbons (ending in -ane: all single bonds. Root largest carbon chain = 6 carbons hexane. Prefix lowest # where carbons are attached = 2,4. Alphabetize attached groups (cid:1005) (cid:272)ar(cid:271)o(cid:374) (cid:272)hai(cid:374)s atta(cid:272)hed = (cid:373)ethyl (si(cid:374)(cid:272)e there are (cid:1006), it"s dimethyl) Propyl when carbon on end is attached to longer chain. Isopropyl when middle carbon is attached to the longer chain. Butyl when carbon on end is attached to longer chain. Sec-butyl (secondary) when carbon in middle is attached to longer chain. Isobutyl (butyl is not in chain) when carbon on end is attached to longer chain. Tertbutyl when carbon in middle is attached to longer chain.