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Pair the reagent condition with the reaction that corresponds. a. (Ph),Culi, eter b. NaBH, etanol c....
16. Diazomethane is an example of a dipolar molecule; a molecule which is neutral overall but has charges on individual atoms. One resonance form of diazomethane is drawn below. Draw the Lewis structure of the other resonance form of diazomethane. Be sure to include all formal charges. H-7-NEN Choose the best reagent(s) from the list provided below for carrying out the following transformations. Place the letter corresponding to the best choice in the blank to the left of the transformation...
4. Complete the reactions below by supplying the reactant, reagent or product. (*pts each OH b H,0,HCI Heat O it CI d. (excess) 1. LAIH 2. H2O -CHCH PPh; 3 Name: f. 1. CHACHIMBI 2. H,0 1. LAIH 2. HO h. CuLi(CH 3)2 i. 1. LDA (1 equiv) 2. CHỊCH,C 5
provide the products for each reaction including any relevant stereochemistry. if a pair of stereoisomers is produced, draw one and write + enantiomer ir + diastereomer, whichever is relevant. 1. CH, MgBr 2. H₂0" (Ph),Culi (R)-CBS + light 1. DIBAH 2. H, ... 1. Mgether 2. CO 3. H,0
a.) H H_Cro acetone b.) 1. XS KMnO,/KOH/HOIA 2.H30* c.) ni XS NaBH,, H,0 H OH d.) o 1. XS LAIH/THF/-78 °C 2. H20 H OH e.) NaNH / lig NH3 f.) Br 1. Mg/THE 2. CO2 3. H30 9.) Ph Ph cyclopropene HF CH h.) OH 1. PCCICH.CH 2. Pri 3. N,Cag) 1. LITHF 2.CO 3. NH.Ca) HNO, NH 1. HNO () 2. NaSCH CH.CH AICI, 3-chloro-2-methylpentane m.) 1.Pr.CI. AICI 2. NBS, CCH n.) OH XS H.COM acetone OH...
Under what condition would phenylalanine exist as follows? CH2CHCO2 NH2 A) at a low pH B) at a high pH C) at the pl D) when pH =pKa What is the net charge of isoleucine (any amino acid) at its isoelectric point? A) 0 B) +1 C) +2 D) -1 E) -2 The reaction of HO -CH=CHCOH NH2 tyrosine Do not overthink this. D) Br with bromine water is likely to give A) HO CH CHCE HO -CH2CCOH Br NH2...
In each reaction box, place the best reagent and conditions from the list below. In each reaction box, place the best reagent and conditions from the list below. You are correct that the third step is a reduction of 2-pentyne. But H2 with a platinum catalyst will reduce it to pentane, while you need an alkene for the next step. NaNH H3C OH HO 2) CH3CH2Br CEC H3C CH3. H3C H2, Pt HO 4) KMno 4, NaOH, H20, cold BH3...
Which reagent(s) were used in the following reaction? ОН 2 ОН NaBH CH,OH Сю, H,SO4, H,0 О1. oso, 2. NaHSO), Н,0 тСРВА 1. О, 2. Zn, H,0
What reagent(s) will complete the following reaction? HO. 1. Hg(OAc)2, H2O/THF 1. B, H, THE H0/H0 HO/HO 2. NaBH, 2. NaOH, HẠO II III IV ΟΙ O II III O IV Both I and III will work.
1) Reactions. Provide the major products for each reaction sequence, account for stereochemistry 1) KMnO4, A 2) SOCI, CH2Cl2 3) 2 equiv. 1) ethylene oxide, THF 2) H3O+ workup Culi 3) DIBAL-H, THF 4) H3O+ workup 5) cat. TsOH, THF H3CCHE (c) HN COH 1) excess LAH, THE 2) H30+ workup 3) 1 equiv. EtN, DMF 4) pyridine i ( " culi , THF (d) PC Ph 2) H3O+/H2O workup 3) KMnO4, A 4) CH,OH, cat. H2SO4 5) cat. TsOH,...
Which reagent or set of reagents will best accomplish this transformation? b OH (A) OsO (B) 1) Hg(OAc); /H:0 2) NaBH, I-BOOH (D) HOOH (C) 1) THF-BH, 2) H-02/OH/H,0 7 What is the product of this reaction? (A) W model Å Which best represents a step in the mechanism for " I- @ AR .-