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8. LDA, lithium diisopropylamide functions as a(n): A. strong kinetic base C. electrophilic nitrogen reagent B....
Lithium diisopropylamide is a strong, nonnucleophilic base. It is often freshly prepared by treating a certain reactant with n-butyllithium (n-BuLi). Draw the starting material and draw the product (lithium diisopropylamide). Include any charges, but you do not need to draw electron pairs.
What is the major organic product expected from the reaction of 3,5-dimethylcyclohexanone with LDA (lithium diisopropylamide) followed by methyl iodide? Select one: a. 3,3,5-trimethylcyclohexanone b. methanol c. 2,3,5-trimethylcyclopentanone d. 2,3,5-trimethylcyclohexanone e. 2,3,5-trimethylcyclohexanol
8. Identify the following as a strong acid, a strong base, a weak acid, a weak base, or a neutral solution: a. LiBr b. LiOH c. H20 d. HNO3 e. HOBr f. CH3NH2 g. NH3
8. Identify the following as a strong acid, a strong base, a weak acid, a weak base, or a neutral solution: a. LiBr b. LiOH c. H20 d. HNO3 e. HOBr f. CH3NH2 g. NH3
18) 18) Lithium and nitrogen react in a combination reaction to produce lithium nitride: 6Li(s) +N2(8) - Li3N(s) In a particular experiment, 1.00-8 samples of each reagent are reacted. The theoretical yield of lithium nitride is A) 1.01 B) 0.84 C) 2.50 D) 1.67 E) 5.0 LA TAILL th a nk for the following reaction when it is nrenerlv balanced? 19)
NaOH can be classified as a Select one: a strong acid b. weak acid c. strong base d. weak base HCl can be classified as a Select one: a strong acid b. weak acid C. strong base d. weak base CH3NH2 can be classified as a Select one: a strong acid b. weak acid C. strong base d. weak base A substance that can act as either an acid or as a base is Select one: a. amphoteric b. mesomorphic...
Please help!
for each reaction
a)assess the substrate
b) classify reagent (strong or weak; nuc or base)
c) solvent type if not indicated
d)mechanism type
e) major & minor products; proper stereochemestry &
geometry..
sn1,sn2,e1,e2
Lot (E2) O NÁSH (SN a NUC on Etoho Weak nuc Tb xs Nal XS Nal (SN22 H2O ignore Nuc/base effects of water weakbase good nuc tBuOK (potassium t-butóxide) strong Oa ge conc. H2SO4 30 heat elminator 6. но 7. DBN Br (strong base) -OEt...
OH LDA - в THF, -78 °C (a) There are four possible sites of deprotonation on compound A. Re-draw compound A, indicating each of these sites with an asterisk. (2] (b) Under these conditions, deprotonation with LDA gives the kinetic lithium enolate B. Give a curly arrow mechanism for the formation of B. [2] (c) Draw a curly arrow mechanism for the intramolecular aldol reaction of enolate B to give product C. [3] (d) Draw a curly arrow mechanism for...
3. For each reagent Q, R, W, X, Y, and Z in the list below, provide one correct function and the two correct reasons for your choice. .. Na O: S: Na Ho KI Na : Q RW > The options are: FUNCTIONS 1 - strong nucleophile + strong base; (choose one) 2 - strong nucleophile + weak base; 3 - weak nucleophile + strong base; 4 - weak nucleophile + weak base REASONS (choose two) A - conjugate acid...
Mg(OH)2 can be classified as a Select one: a strong acid b. weak acid c. Strong base d. weak base H2SO4 can be classified as a Select one: a strong acid b. weak acid c. strong base d. weak base Mnl is Select one: a. acidic b. basic c. neutral Li2CO3 is Select one: a. neutral b. acidic c. basic
7. Fill in the table with acid/base conjugate pairs Acid/conj base Reagent Acid/Base 2 Base/conj. acid -но o9uenn H SO HOHSO 4 Hq ibnit t boau noisup orl ai t W CI +H O HCI+OH HOT b n tad HCI +NH CI +NH 3 NH +HO NH +OH 2 MO1701 List 3 strong acids and explain why these acids are considered strong acids. a. b. 8. с. eniwollol odi lo doso to Ho pdod bluow ai List 3 weak acids...