tract eniso Nas anic evir th Which is the most stable conformation for cis-1-t-butyl-2-methylcyclohexane? (A) (B) CHE (C
Posted: Mon May 09, 2022 4:07 pm
tract eniso Nas anic evir th Which is the most stable conformation for cis-1-t-butyl-2-methylcyclohexane? (A) (B) CHE (C) CH CH (D) CH, 47. Which compound has a quartet at approximately 40 in the H NMR spectrum? (A) HCH-C- -OCH (B) HC OCHCH (C) CH.CH (D) HO КС-сненск, 45. The 13C NMR spectrum of which compound contains only two peaks? (A) CH.CH2CH2CH2OH (B) HCOCH.CH (C) (D) o HyCH COH HCC CH₂ 46. The infrared and H NMR spectra for a compound are shown. What is the structure of this compound? 100 Ph.H 48. What is the major product of this E2 elimination reaction? (A) H₂O CH.CH Ph HC Br EIONS EICH (B) нус Ph A C PH Ph Ph CH,CH, (C) Ph CHCHE (D) Ph Hey & CHICH PH CH PH H transmittance (96) 50- 49. Which is a major intermediate in the mechanism of this reaction? OH H2SO H-CH-CH2=CHCH, H.CHC-CHCH.CH heat lols and trans) D 4000 3000 2000 1500 wavenumber(cm) 1000 500 (A) (B) CH₃CH₂CHCH₂CH, 2 CH,CH_CHCH.CH сн,сненон,сан, (C) (D) CH, CH CH CH CH 50. Which is not an appropriate resonance structure for this compound? (A) 6 4 3 2 w wy PPM (C) (D) (A) HECCEC-H (C) NuC-CH OH (B) CHCC C-H (D) HCCECCH2-S-OH O=0:0