1. For each of the following transformations, provide the missing reagents/conditions, starting material, or major organic...
1. Provide the missing starting material, reagents, or major organic product for each of the following reactions. (No more than two steps are required in any case where we ask you to fill in reagents.) 1. Mgo, Et20 2. H20 a) Cl b) MgBr OH , Et20 2. H* workup c) OH d) NaOH (cat.) e) OH NaBH4, CeCl3, MeOH
clearer images For questions 1 - 5. predict the major organic products for the following transformations. Clearly indicate formal charges and stereochemistry if applicable. The use of a squiggly bond is not permitted; all stereoisomers should be clearly indicated for full credit. OH 1. a) Croy, H,SO,,H,O (Jones reagent) b) workup 2. a) HCI (cat.), CH, OH b) workup Q2 1. a) Croy, pyridine, HCl, solvent (PCC) b) workup 2. a) HCI (cat.), CH, OH b) workup a) NaOH, solvent,...
4. Provide a complete curved-arrow mechanism for each of the following transformations involving conjugate addition Note that no stereochemistry is shown or implied in any of these reactions, and you may neglect it in your mechanisms as well. a. For this mechanism, you may assume that the reagent NaBH.CN behaves just like NaBHs, and that it preferentially performs 1,4-addition to unsaturated carbonyl compounds. O ! OME OMe H 1. NaOE, ETOH 2. NaBH CN, MOH oMe ОMe OME OME EtOXOE...
Question 6, Contd... Provide the missing major organic products or reagents/conditions for the following reactions. Unless indicated otherwise, do not forget to include stereochemistry as appropriate and INDICATE ANY RACEMIC MIXTURES. OCH3 1 Equiv. CH3NH2 ignore stereochemistry NMez HCI (cat.) heat excess 1. Nat OEt OEt Eto OEt excess 2. H3O+ Ph
5. For each of the following questions, provide the missing reagents and conditions or predict the MAJOR product. Indicate stereochemistry and identify a racemic mixture if applicable. If no reaction ocCurs, write out "no reaction." (48pts) a. Br Br b. I) LDA/THF/cold 2) iodomethane / THF 3) NABH,/ MeOH C. I. KCr,O,/H2SO, I. CH CH),N(CH,),сH, (followed by H,O 3-рentanol d. I. NaOH/EtOH II. 1-bromo-4-methylhexane / DMSO I. NaOH/EtOH IV. benzoyl chloride v. I) LIAIH 2) H,O NH e. суclopentanone f....
1. For each of the following questions, provide the missing reagents that can be purchased) and conditions or predict the MAJOR product. Indicate stereochemistry and identify a racer mixture if applicable. If no reaction occurs, write out "no reaction." a 1) LiAlH 2) H.O NaBH / MeOH si -
1. Provide the missing starting materials, reagents, or products in each of the following reactions. H+ OH CH,OH NaOH Meo NH2 room temp. HO OH Meo Me ОН Meo 2. Provide appropriate conditions to convert each of the following starting mana hexanoic acid (some transformations may require more than one step): It each of the following starting materials into OH OH ОMe "NH₂
For questions 1-4, provide the missing reactant(s), reagent(s), or major organic product(s) of each reaction. Only one type of species is missing for each reaction. If you are providing reactant(8) or product(s), be sure to indicate stereochemistry if it is relevant. If you are providing reagents and more than one step is required, be sure to number each step. 1. EtMgBr 2.H20 NH [H] 5. Propose an efficient synthesis for one of the following transformations. Please circle the synthesis you...