Elementary Organic Chemistry I - Exam II Solutions | CH 231, Exams of Chemistry

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Exam #2 Chemistry 231(Blackstock) October 17, 2912 Name: conciii_______. (print} Honor Pledge: KEY _ (sign) oS nr ety Exam time 3:00-6:30 PM. Partial credit will often be given for partially correct answers, so show your work. Clarity in structure drawings helps carn points. T. General Kuewledge (26 pts) 1. (18 pts) Provide the corresponding structures for the items listed below. Br gy . CK i eo Yt wot cr” - { CHCl, meso-dibromocyclobutane Fisher projection of (R)-2-butanol mCPBA ay “ ¢ 70 q Mg Oy eo er Hoga Os Towoe" fos } Se Sy i ic ews °O “is (racemic) the ozonide of styrene the osmate ester of (Z}-3-methyt-2- (£)-2-bromo-3-methyl-2-pentens pentene & ,Be SY 4-4 Wc, CHC CH=CHCHCHCH, Cy, oH Cis mfoms Of ( cia, CHCH,- ae) Femeyyrs- ¥ the bromonium cation formed from an alkene which gives only butanal organoborane derived from 1- trans-2-butene (C. aldehyde) on ozontysis butene 2. (8 pls) Provide names [or the following structures below. (2)-4-eHuh- 3- nonone. (Sl-4-ellor=t-dimetta cyelo palin CH; H-—Br —=\ Br-7—H ( _ ) CH; 25,35)~2 3-dibeomobukune Ae cy ce hexadiene