a) draw the following: a-butyl-11,4-trimethylcycloheptare -02 4-ethyl-5-isopropyl-2-methyl nonane. 3,3-diethyl pentane
A molecule was incorrectly named 3-n-butyl-5-ethyl-4-isopropylhexane. The correct name would be: OA) 1-sec-butyl-2-ethyl-1-isopropylhexane O B) 3-sec-butyl-4-ethyl-2-methyl-octane OC) 6-isopropyl-5-diethyl-7-methylnonane O D) 5-ethyl-4-isopropyl-3-methylnonane OE) 4-n-butyl-2,2-diethyl-3-isopropylhexane
Compounds ethyl cyclohexane, isopropyl cyclopentane, t-butyl cyclobutane, and 1-methyl-2,3-diethyl cyclopropane all have the molecular formulas of C8H16. How would you differentiate them on the basis of DEPT NMR spectroscopy?
4. Draw structures corresponding to the following systematic names; a) 1-isopropyl-4-methylcyclohexene b) 3-butyl-2-heptene c) 4-methyl-1,2- hexadiene d) trans-3,3-dimethyl-4-propyl-1,5-octadiene e) (42)-2,4-diethyl-1,4-hexadiene f) 1.2-propadiene g) (32,5E) -2,6-dimethyl-1,3,5,7-octatetraene h) cis-2,2,5,5-tetramethyl-3-hexene i) Methylenecyclohexane, j) trans- 1,2 divinylcyclohexane
Draw the skeletal formula of the following alkanes. a. 4-ethyl-octane b. 3,3-dimethyl-pentane
draw the structures 2-Ethyl1,4-dimethylcycloheptane Cis-1,3-diethyl cyclobutane Trans-1-bromo-3-ethylcyclopentane Cis-1,2-diethyl cyclopropane Trans-1,2-diethyl cyclopropane 2-methylheptane 4-ethyl-2,2-dimethylhexane 4-ethyl-3,4-dimethyloctane 2,4,4-trimethylheptane 3,3-diethyl-2,5-dimethylnonane 4-isopropyl-3-methylheptane
I . Write a bond-line formula for each of the following compounds: 1,4-Dichloropentane sec-Butyl bromide 4-Ethyl-3,3-dimethylhexane 2,2,3-Trimethylpentane 3-Ethyl-2-methylhexane Bicyclo[4.4.0]decane 2,2-Dicyclobutyl-5-ethyloctane Bicyclo[2.2.1]heptane 4-Isopropyl-5-methyloctane cis-1-sec-Butyl-2-methylcyclopentane 3,7-Diethyl-2,2-dimethyl-4-isopropylnonane 4-Ethyl-4-fluoro-2-methylheptane 1,1-Dichlorocyclopentane cis-1,2-Dimethylcyclopropane trans-1,2-Dimethylcyclopropane II. Give systematic IUPAC names for each of the following: а. ОН b. С. Br d. e. Br f. Br Br CI h. а. ОН b. С. Br d. e. Br f. Br Br CI h.
Draw structures corresponding to the following names: 9.19 Draw structures corresponding to the following names: (b) 3-Ethyl-5-methyl-1,6,8-decatriyne (a) 3,3-Dimethyl-4-octyne (c) 2,2,5,5-Tetramethyl-3-hexyne (d) 3,4-Dimethylcyclodecyne (e) 3,5-Heptadien-1-yne (g) 3-sec-Butyl-1-heptyne (f) 3-Chloro-4,4-dimethyl-1-nonen-6-yne (h) S-tert-Butyl-2-methyl-3-octyne 9.19 Draw structures corresponding to the following names: (b) 3-Ethyl-5-methyl-1,6,8-decatriyne (a) 3,3-Dimethyl-4-octyne (c) 2,2,5,5-Tetramethyl-3-hexyne (d) 3,4-Dimethylcyclodecyne (e) 3,5-Heptadien-1-yne (g) 3-sec-Butyl-1-heptyne (f) 3-Chloro-4,4-dimethyl-1-nonen-6-yne (h) S-tert-Butyl-2-methyl-3-octyne
Question 5 0.5 pts ethyl 2-isopropyl-3-oxobutanoate + NaOEt +EtOH + methyl iodide --> something else! no reaction! ethyl 3-oxo-2 buteneoate ethyl 2-propyl-2-methyl-3-oxobutanoate ethyl 2-isopropyl-2-methyl-3-oxobutanoate Question 6 0.5 pts sat ethyl 2-isopropyl-2-methyl-3-oxobutanoate + KOH/water then dilute sulfuric acid and heat --> something else! ethyl 2-isopropyl-2-methyl-3-oxobutanoic acid 3,4-dimethyl-2-pentanone 2,3-dimethyl-4-pentanone 3,3-dimethyl-2-pentanone
1. Nomenclature and stereochemistry: Provide Name or Structure (3 pts cach) a) (2S,3S)-2-bromo-3-fluoro-pentane b) cis- 1-cyclobutyl-3-isopropyl-cyclopentane d) Br f) Butyl acetate g) 3,3-difluoro-2-propyl-hexanoic acid h) Methyl ethyl ketone i) N,N-diethylamide
Draw bond line structures for the following: 1,1,3-triethylcyclooctane 4,5-diethylnonane 1-butyl-3-fluorocyclobutane 4-ethyl-3-isopropyl-2-methylhexane