Problems: 1. Fill in the boxes in the following problem. Pay close attention to steochemistry. PBr3,...
help with alcohol rearrangement and carbocations. please explain. thank you for your time. 1. Fill in the boxes in the following problem. Pay close attention to stereochemistry. PBrz, pyridine N OH TsCi, pyridine NaOET Etон NaOEt EtOH NaN NaN3 EtOH, A EtOH, A 2. Provide a mechanism for the following reaction.
13. Reactions: Fill in the missing products for each of the boxes in the following reaction sequences. (30) OH Na2Cr2O7 H2SO4 H2O PCC NaBH HOCH, PBr3 Br2, H20 NaH BrMg- 2. H2O* NaOEt 1. OsO4 2. NaHSO3
Q1- Fill in the boxes with the product of the following reactions. Draw only the PREDOMİNANT REGIOISOMER. When a racemic mixture is formed mark the chiral center with an ASTERICK () and write RACEMİC in the box. 1 Eq LDA 0 1 Eq NaOH 1) 0.5 Eq LDA1) Cat NaOH 2) H30 јнзо-, Heat , NaOEt, EtOH 1. NaOEt EtOH Br 1) NaOH, H2O 2) H3O 3) Heat 1) (CH3)zMgBr 2) H30 2 a2- Fill in the boxes with the...
28 - Fill in the hal ini tersing a 08 - Fill in the boxes with the product(s) for the following reactions. Draw only the predominate regioisomer and indicate the stereochemistry where appropriate. If a racemic mixture is formed, you may indicate this using a wavy line or mark the chiral center with an asterisk (*), and write racemic in the box. 1) NaOPr, ProH 2) H307 1) NaoMe, MeOH OMe 2) H30+ 1) LDA (1.1 eq) 2) OEt 3)...
Fill in the boxes below with the correct structures of enolate reaction products. NaOEt EtOH 1. NaOH 0 3. heat Michael addition NaOH NaOH heat H+ Crossed Aldol 3 NaOH 1. NaOH CH3 3 Br2 Haloform Fill in the boxes below with the correct structures of enolate reaction products. NaOEt EtOH 1. NaOH 0 3. heat Michael addition NaOH NaOH heat H+ Crossed Aldol 3 NaOH 1. NaOH CH3 3 Br2 Haloform
Reactivity of various compounds. Indicate the product of the following reactions. When necessary, pay attention to the stereochemistry of the reagent andnto that of the final product. PROBLEM 2. Reactivity of various compounds. Indicate the product When necessary, pay attention to the stereochemistry of the reagenta product of the following reactions. eagent and to that of the final product! (_) SOCI LOH pyridine Fac он PCIE CH₃ LIAID4 OH Croz /H он NaH он Et20
confused on these reactions 01. Fill in the boxes with the product(s) for the following reactions. Draw only the predominate regioisomer and indicate the stereochemistry where appropriate. If a racemic mixture is formed, you may indicate this using a wavy line or mark the chiral center with an asterisk (*). and write racemic in the box. H NaOH, H2O 3) H0 NaOH, H2O in the boxes with the products for the following reactions. Draw only the predominate copioisomer and indicate...
Use the following roadmap to answer the next three problems. Br PBr3 BPCO A Pay B B PCC HBO Draw the structure of compound A. Create OscerSketch Answer 8 Draw the structure of compound B.
(4 pts 2 pts EC) Predict the products for the following reactions. Pay attention to stereochemistry 2. where appropriate HO SOCI2 а. dioxane 1) TsC pyridine Он b. 2) LIAIH4 1) TsCl pyridine но° C. 2) Nal OH РСС d. CH2CI2 он NaOCI но, acetic acid он NaOCI Он ТЕMPO
1. (12 pts) Fill in the boxes over each arrow with the letter that corresponds to the reagents needed to perform each step of the multistep sequence shown below. Reagents may be used more than once, or not all. Pay close attention to the numbered carbons in the starting material, and be sure that your answer accounts for the position of these carbons in the final product. 1 3 3 3 2 2 MCPBA CF3SO3H A) HOCH3, DCC, DMAP E)...