3. Please write out the products or reagents (Note: stereochemistry ) H3C Br2 H3C Br/H20 (2) (1) H3C H3C Br2 ( Note: anti-stereochemistry) (3) BrCI H H,C C=C H H H2 (5) (Note: syn-stereochemistry) Pd/C CH3
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- How would the HNMR of these two compounds be different when taking into account the stereochemistry? H. ;c= H₂C-CH₂ н-с нас-нас H (2)-isomer ~-CH₂-CH₂-OH -CH₂-CH₂-OH (E)-isomerChemistry 3. Complete the following reaction scheme. Give all product(s) and indicate major or minor and any relevant stereochemistry. (а) NaOEt heat (b) heat (c) Br NaCN DMF (d) (e) OH H,SO,/H,PO, heat (f) HBr (g) 1) BH. THE 2) H,0, OH (h) 1) Hg(OAC), H-0 2) NaBH, (i) KMNO, NaOH Coldd) e) b) c) E₂ d) Es in the products. Include stereochemistry where relevant. CH₂₁ CH₂ 1. BH, 2. H₂O₂ OH 100⁰ CH₂OH NaCN 1.0₂ 2. Zn, H H₂O* H, heat.
- Reaction of Zn/Hg; HCI ( Clemmensen conditions) with CH3CH2C(O)C6H5 forms ____ as the product. (a) CH3CHCHC6H5 (b) CH3CH2COOH and C6H5COOH (c) CH3CH2CH2OH and C6H5OH (d) CH3CH2CH(OH)C6H5 (e) CH3CH2CH2C6H5Q.1. : Name the following compounds. Specify stereochemistry, if applicable. a) Х b) S НО ОН Br ОН ОН IGive the major organic product(s) of the following. Include stereochemistry when applicable. 1) Nal Br a) 2) NaCN, acetone 1) NaOC(CH3)3, heat d Br 2) BH₂ THF; 3) H,O,, NaOH(aq) b) c) d) c) 2) KOC(CH3)3, heat Copyright University of California Merced 2022 Br 1) NaOH, heat 2) MCPBA 1) KOC(CH3)3, heat 2) H3O+
- Please help with 4c, 4d, and 4e. We havent learned kaw of equivalents so please do 4c a different way. thank youComplete the following: Stereochemistry, enantio-, and regioselectivity are important. CrO3, H2SO4 a) OH Bromination of an alcohol (Sn2) type EtO₂C CO₂Et b) b) d) H3CO type NH2 a) b) H3CO type a) b) OH g) type CN CI h) acetone Swern Oxidation type type CO₂H type Доно i) Me3SICI, Imidazole OSiMe3 Et3N, CH2Cl2 Br type a) Mg°, THF Br j) b); H3O+ H2SO4 (H+) MeOH OMe type typeWhich of these products is the result of a hydride shift occuring during the substitution reaction of aqueous 2-chloro-3-methylpentane? CH3CH2CCH2CH3 || CH2 CH3CH(OH)CH(CH3)CH2CH3 CH2=CHC(CH3)=CHCH3 CH3CH=C(CH3)CH2CH3 CH3CH2C(CH3)CH2CH3 | OH
- (c) (d) (e) HN NHSO₂Ar OH BuLi [3 equivs.], then CO₂ then CF3CO₂H Ar = 2,4,6-tri-isopropylphenyl t-Bu t-BuLi [2 equivs.], then CO₂ (i) BuLi [2equivs.] then DMF, then H3O+ CO₂H HN `t-Bu CHO N(-)-Cameroonanol has been isolated from the essential oil of Echinops giganteus (globe thistle) plants and it is associated with a strong woody fragrance. Its structure, includ- ing relative stereochemistry, was confirmed when it was made in the laboratory according to the sequence shown below.' Recall that a C=C bond is made up of one o bond and one 7 bond. These two bonds together have a combined BDE (bond dissociation energy) of 607 kJ/mol. Use this information to estimate the AH for the conversion of compound 1 into compound 2. Br two steps .... H HBr hv H.. (--Cameroonanol4. For the following reactions tell which should have kH/kD values greater than 1.5 for isotopic substitution at the starred hydrogens: (a) -CH=C=0₁ HNEI, CI (b) (c) CH₂ H₂ CH₂ CH NO₂ C CI Et N OH (CH₂ CH CH – CH₂CH₂ OSO₂Ar fo H,C NO EICH NIFT CH₂ + H₂O (CH)!=CH-CH,CH, + ArSO,H