L3-skeletal

L3-skeletal - H H C H H C H H C H potential point of...

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1 1 C H C H C H H H H H Secondary alkyl Primary alkyl Tertiary alkyl ©Dr. Kay Sandberg 1 o 2 o 3 o Section 2.13 branch = substituent potential point of attachment C C H C H H H H H H C H H H C C H H H C H H H 2 Classification? 1. 1 o 2. 2 o 3. 3 o 4. 4 o C H C H C H H H H H Primary alkyl ©Dr. Kay Sandberg Cl chloride (specifically: propyl chloride) Bonded to only one other C (1 o ) C H C H C H H H H H Section 2.13 4- propyl octane 3 C H C H C H H H H H Primary alkyl chloride ©Dr. Kay Sandberg Cl is bonded to only one other C (1 o ) Section 2.13 4- propyl octane Branch classified BEFORE attachment! C C H C H C H H H H H 4 H 3 C CH H 3 C H 2 C CH H 3 C CH 3 H 3 C CH C H 2 CH 3 C CH 3 H 3 C CH 3 C CH 3 H 3 C CH 3 C H 2 Alkyl substituents: IUPAC nomenclature ©Dr. Kay Sandberg Section 2.13 parent “Branching branches” 5 ©Dr. Kay Sandberg Section 2.13 (1-propylpentyl)benzene (1-propylpentyl) benzene (1-propyl pentyl ) (1- propyl LQ #2A) Draw (4-ethylheptyl)benzene LQ #2B) Name the molecule below according to this slide’s convention. 6 Alkyl substituents: Common names H 3 C CH H 3 C H 2 C CH H 3 C CH 3 H 3 C CH C H 2 CH 3 C CH 3 H 3 C CH 3 C CH 3 H 3 C CH 3 C H 2 (1,1-dimethylethyl) (2,2-dimethylpropyl) (1-methylethyl) (1-methylpropyl) (2-methylpropyl) ©Dr. Kay Sandberg Section 2.13 isopropyl (IUPAC) sec -butyl isobutyl tert -butyl neopentyl sec = secondary = tertiary
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2 7 Alkyl substituents: analogy ©Dr. Kay Sandberg Section 2.13 isopropyl benzene isobutyl benzene tert -butyl benzene 8 CH 2 H 2 C C H 2 cyclo propane H 2 C H 2 C C H 2 CH 2 CH 2 H 2 C cyclohexane Cyclo alkanes Section 2.14 ©Dr. Kay Sandberg 9 common name Cyclo alkanes Section 2.14 ©Dr. Kay Sandberg IUPAC name isopropyl cyclopentane (__________) cyclopentane ( branching branch ) 10
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L3-skeletal - H H C H H C H H C H potential point of...

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