C. Br HO cat. H3O HO Racemic Mixture Compound 1 H Mg Compound 2 2) Referring to the above scheme in Q1 part C, what type of reaction takes place to form Compound 1 from the starting reagents, and why is it required in this synthesis?
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- Which set of reagents is appropriate for the following transformation? istryteps Br Br a. Br2/AIB13 b. 1. Br2/AIB13; 2.NANO2/HCl; 3. Fe/HCl c. 1. HNO3/H2SO4; 2. Sn/HCl; 3. Br2; 4. HNO2; 5. H3PO2 d. 1. HNO3/H2S04;B 2. Sn/HCl; 3. Br2/FeBr3; 4. HNO2; 5. НЗРО2Which conditions will produce the target product in the highest yield? O A) 1. BH3; 2. H₂O₂, NaOH, H₂O B) 1. OsO; 2. S(CH3)2 C) 1. Hg(OAc)₂, H₂O; 2. NaBH4 D) H₂SO4, H₂O A ? B OH racemic mixtureWhat is the missing reagent in the reaction below? of of. cr CI Multiple Choice O LIAIH4. [2] H2O (1] CH2=CHLI, [2] H2O (1]) (CH2=CH)2CULİ, (2) H20 (1] DIBAL-H, (2] H20
- In each reaction box, place the best reagent and conditions from the list below он ... он 2) 3) HаCrOд Н2О2, NaOH, H20 Br2 Cl2, H20 PCI3 ВН- THF H2SO4 (conc.) dilute H3O* NaBH4 in EtOHSelect the reagent(s) necessary for the given step of these synthesis pathways: Reagents available a. CH3 CH2 COCi f. PB33 b. C6 H5 COCI g. Mg, ether c. AlCl3 h. H2SO4, conc d. NaBH4, ethanol i. SOCI2 e. Н,SO4, dil j. C6H5 CN Scheme 1: он Br CH3 CHa CH3 MgBr CH3 C-H CH,CH3 но CH2CH3 Step 2 : Previous Next Step 7:c. Snl reactions dominate under polar protic solvents. Increasing the polarity of the solvent will increase the rate of the reaction because the polar solvent will stabilize the dispersed charges on the transition state more than it will stabilize the neutral reactant. Label areas of ô* and & on the molecules of the transition state of the SN1 reaction below: Me Me Ме Me Me H20 Br -Br OH + НО \'H Et Et RDS Et H Et Et transition state not isolable carbocation intermediate not isolable
- 7. Reaction Scheme. NH₂ NH2 or two differnet methods (no same steps/reagents) C5H12N2 1. xs Mel, xs K2CO3 2. Ag2O, H₂O 3. heat Br2, xs NaOH, xs H₂O OHC 1.03 2. DMS CHOWhich of the following represent the reagents in the correct order for the synthesis of the target molecule? 1. CH3CI, ALC!3; 2. H2/Pd; 3. NBS, light А 1. CH;COCI, ALC!3; 2. Zn(Hg), HCl; 3. NBS, light В 1. CH3COCI, AlCl3; 2. Br2, FeBr C 3; 3. H2/Pd 1. CH3CH2CI, AlCl;; 2. Br2, FeBr3; 3. NBS, light Br 1) 2) 3)For Nos. 63-70 Choose: A -if the indicated property/behavior in item I is greater than in item II B-if the indicated property/behavior in item I is less than in item II. C- if the indicated property/behavior is equal in item I and item II. D- if the indicated data is insufficient to make a comparison.
- Identify the reagents needed to come up with the given compounds. Pls Separate the reagents with a comma and a space. (ex. HNO3, H2SO4). For a multi-step reaction, separate the reagents with a semi-colon. (ex. HNO3, H2SO4; CH3Cl, AlCl3) There should be 9 reagents6). What is the major product of the following reactions? (A) -? coon 1). NaOH in ErOH, then H,O+ 2). 1 eqiv. NaOEt 3). 1 equiv. CH3Br 4). H₂O*, Heat COOB (Intramolecular Claison) COOE (B) CH₂ COOH (D) CH₂ (E) CH3 CH₂i. LIAIH4 i. deprotection .CO2ME J CH2=CHCOCH3 protection ii. H30* ii. dehydration K H The synthesis of K from H involves a 3-steps reaction as shown above. ii. Suggest the reagents involve in the protection, deprotection and dehydration steps.