17. How many constitutional isomer products are formed? a. 3 b. 4 c. 5 NBS heat ? hv ROOR d. 6 e. not a.-d.

D. HOw many aistinct terminal alIKynes exist with a molecular formuia of C5H8! c. How many distinct internal alkynes exist with a molecular formula of C6H10? 4. Which of the following has the lowest b.p? a. 3,3-dimethyl-1-butyne; b. 1-hexyne с. 2-heptyne; d. 3-hexyne; e. 1-decyne. 1 5. Will the reactions shown below go the direction as indicated? + CHOMaBr CH

69. What starting materials with these reagents will result in (Z)-3-hexene? 1. SOCI2, pyridine 2. NaCEC 3. Na, NH3 (2 eq.) a C d. HO. OH HO.

unambiguous b. 2. Name the following in an manner. С. a. : Br: H3C (CH2)2CH3 CH,C(CH3)3 C.

I need help with solving D and E

2. Predict the product or provide the reagent for the reactions below. Each reaction highlights an additional method for preparation of the same functional group. a. Fukuyama, JACS, 2005, 127, 15038 b. MeO. Br TMSO. NO₂ i 1. Fe, HCI 2. O CF3 CF₁ TMSO. OEt

15. Consider the substitution reaction: The product(s) of the reaction is(are): a. R enantiomer C. d. HO-C (S)-2-bromononane H CH; A equimolar mixture of a and b. A mixture of the major product a with the minor product b. CH₂O CH₂OH b. Senantiomer HO-C CH;

8. What is the correct order of stability, starting with the most strained, for the conformations shown below? H. H3C a. A, B, C; CH₂CH3 H H CH3 A b. B, A, C; H. CH3 CH3 B H CH₂CH3 CH3CH₂ CH3 CH3 H HD" H. c. C, A, B; C d. C, B, A.

predict the major organic products if of the 'following reactions a. ОН 1. TSCI, Py 2. МеОН, Д b. NaOEt Br С. CI acetonitrile KCN d. Br DBU Br.. e. OH NaOMe HOME f. H2N HO,

Predict the organic product(s) ? HÖ CH3 + CI o-CH3 O-CH3 CH30 b-CH3 II III IV А. I В. I С. Тand IV D. IV E. II