please help!!! 4 Draw each of the following dienes. Then, circle the one that is chiral....
Draw the structure of each of the following compounds: 1,4-Cyclohexadiene 1,3-Cyclohexadiene (Z)-1,3-Pentadiene (2Z,4E)-Hepta-2,4-diene 2,3-Dimethyl-1,3-butadiene
Draw the skeletal structure of the following compounds a. 3-ethyl-4-methyl-1,5-heptadiene b. 2,3-diethyl-3-methyl-1,4-pentadiene Determine the products of the following reactions. Also demonstrate the mechanism in each reaction
please explain fully. also I am confused why there are numbers in
with E and Z
(2.) Draw structures corresponding to the following names: a) (4E)-2,4-dimehyl-1,4-hexadiene b) Cis-3,3-dimethyl-4-propyl-1,5-octadiene c) 4-methyl-1,2-pentadiene d) (3E,5Z)-2,6-dimethyl-1,3,5,7-octatetraene e) 3-butyl-2-heptene f) Trans-2,2,5,5-tetramethyl-3-hexene
Diels alder, please help.
ne tronat.c Name the products of the following reactions, draw structures and explain your answer? (5 Points) (a) Maleic anhydride and Cis form of 2,3-dimethyl-1,3-butatdiene (b) Maleic anhydride and Trans form of 2,3-dimethyl-1,3-butadiene,
Passage 11 (Questions 1-9) Dienes, a special group of alkenes, can be classified as conjugated or isolated. Conjugated dienes are alkenes with alternating double and single bonds. Isolated dienes have double bonds separated by more than one single bond. One explanation for this observation is the hybridization theory. According to the hybridization theory, the stability of conjugated dienes comes from the hybridization of the orbitals forming the carbon-carbon single bonds. For example, in 1,4-pentadiene, the C-C single bonds result from...
4. What is the IUPAC name for the following A. (2E, 42)-2,4-hexadiene B. (2E, 4Z)-1,4-dimethyl-1,3-butadiene C. (2z, 42)-1,4-dimethyl-1,3-butadiene D. (22, 42)-2,4-hexadiene E. None of these Predict the product for the following reaction. нгон-1400C 5. A. propene B. diethyl ether C. 1-hexanol D. 1-propoxypropane 6. Which one of the following represents the lowest energy D-bonding molecular orbital of 1,3- butadiene? IV 7. A thermodynamically-controlled reaction will yield: A) the most stable product. B) C) the product that can be formed in...
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
CHEM2033 EXAMINATIO .2 (atomic numbers: C-6, Н-1,0-8. C-17, Br-35 ) 1. The IUPAC name of the compound Test/28 (A) 2-methyl, 4-ethyl pentane B) 2-ethyl, 4-methyl hexne (E) 2,4-dimethyl hexane (4ethyl, 2-methylI hexane 2. Which of the following compound has no chiral center 3. The bond angles in methane and ethyne are 4. The most unstable 1,4-dimethyl cyclohexane conformation (D) 3-ethyl,5-methyl hexane (A) 2-butanol (B) 2-chloro butane (C) 1,2-dichloro butane (D) 1,3-dichloro butane (E) 1.,4-dichloro butane (A) 109.5° and 120 (B)...
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7. Which of the following molecules are chiral? If they are chiral, draw a circle around each chiral carbon atom. There may be more than one chiral carbon atom in a molecule. H. CH₃ CH3 H-C-CH2CH2CCH2CH2CH2Br CH2CH3 C- Br F Br C-C-C-CI i H CICI Η Br -H H-cuc-c Br c- c c F-C-H BH CH₃ H-C-CH2CH2F CHE
1. Draw line-angle structures for the following compounds: a) (20,4E)-1-chloro-3-methyl-2,4-hexadiene b) (32,5E)-4-methyl-3,5-nonadiene c) (32,5Z)-4,5-dimethyl-3,5-nonadiene d) (35,5E)-2,5-dibromo-3,5-octadiene