(ii) is least stable conformation of butane.As bulky group are close to each other
The least stable conformation of butane is: H3C ICH3 Ito H2C1 H3C СНа CH3 сн. H1...
Question 3 ВА The most stable conformation of butane is: НЫС Ін нІсн, Н, Сн “н сан, нәсін HỌC | H CH3 CHE HT H TH ——-I2 Oa In Oь у > 2. -
H3C Br СНа -С-Сн, ОН (d) for carrying out each of the following conversions to yield a 12 Suggest conditions for carrying out each of the following product that is as free of isomers as possible (a) HO OH CH, CH3 H₃ C CH-(CH₂-ci Hz CH-(CH2)-OH H₃C H₃C 22
Name the following alkenes using systematic names. H3C- CH-CH2-CH=CH-CH3 H3C— - CH-CH-CH=CH2 CH3 CH3 H3C—CH=CH-CH2-CI сна
Arrange the following Newman projections in order of increasing stability (least stable first). H3C CH3 CH3 CH3 HC CH CYCH н кX CXн Х TH CHE сн. CH3 o B,D,A.C o D, B, A, C O A, B, D, C o C, B, D, A What is the structure of intermediate 1? BD, HC THA CHA CHA Product Nou H2O, NaOH |
Rank conformations bcd from most stable to least stable (most stable first) DUH ΤΗ HH Conformation A Question 2 (1.5 pts] Rank conformations B, C and D from most stable to least stable (most stable first C(CH.CH2CH3)3 CH(CH3)2 X H H H HH А Conformation B Conformation C Conformation D Question 3 (1.5 pts) Which one of the following statements about structure E is correct?
2) Order the following alkenes from most stable to least stable Нас Нас с-сн, н,с Hас +C- Нас н CHs -CH3 H Hе most stable least stable (a) I (b) I (c) I ll (d) 7) Order the following C-H bonds from strongest to weakest. strongest weakest (a) (b) (c) II (d) 8) Which of the following is represents the lowest energy transition state for the addition of BH, to 2-methyl-1-propene? quCH «сHs нСи Нас (b) (a) Нив--н H H...
7. Draw a wedge and dash structure of the following Newman projection GHz ви HBr CH3 t Br 8. Which of the following is a gauche conformation for butane? Which is the least stable conformation? The most stable? What is the dihedral angle for conformation ? нсна н CH... HOC CH3 сна нен нан, нен нен н" нэн IV 9. What is the IUPAC name of the following compound?
Part A сн. Н.С CH3 CH2 H -C=C—C—C—CH3 H H CH3 Spell out the full name of the compound. Part B CH3 H3C- -C- H2 сн. EC-CH3 H CH3 Spell out the full name of the compound.
Classify each pair of compounds as constitutional isomers, stereoisomers, or identical molecules. H3C-CH2 CH3 H3C-CH2 Classify: and O constitutional isomers Ostereoisomers O identical molecules CH3 H3C Classify: H2C-CH2-CH-CH-CH3 and н, с CH-CH-CH, CH3 ан. CH3 CH3 O constitutional isomers stereoisomers identical molecules Classify: H₂C. and сн. НАС O identical molecules stereoisomers O constitutional isomers
15) The most stable conformation of 3-bromo-2-methylpentane, viewed through the C-2-C-3 bond (i.e., C-2 in the front, C-3 in the back) Br CH3 CH 3 CH3 H2CH H3C CH(CH3)2 CH3 CH3 CH3 CH2CH3 H2CH3 IV a) I b) II c) III d) IV e) V 15) The most stable conformation of 3-bromo-2-methylpentane, viewed through the C-2-C-3 bond (i.e., C-2 in the front, C-3 in the back) Br CH3 CH 3 CH3 H2CH H3C CH(CH3)2 CH3 CH3 CH3 CH2CH3 H2CH3 IV...