(3) Propose an efficient synthesis of target molecules (a) and (b). All of the carbons in...
(4) Propose a synthesis of the target molecule from the indicated starting materials. Cau- tion! Long, inefficient syntheses are penalized. لل H NH2 (a) [12 points] CH (b) [12 points] 2 Ph Ph Ph CH acetophenone All of the carbons in the target must come from acetophenone.
Propose an efficient and elegant synthesis of each of the following molecules using either diethyl malonate or ethyl acetoacetate as your starting material. You may use any alkyl halide or alcohol as your other sources of carbon, and you may use any reagent you deem necessary. CH3 EN CH₂ HCO CH, Hgc CH, CHA CH₃ -CHS
(4) Propose a synthesis of the target molecule from the indicated starting materials. Cau- tion! Long, inefficient syntheses are penalized. & NH (a) [12 points) (b) [12 points) 2 Ph Ph Ph сн. acetophenone All of the carbons in the target must come from acetophenone.
Design a synthesis of ethyl 2-ethyl-3-oxohexanoate from alcohols containing 4 carbons or fewer. points COET alcohols containing 4 carbons or fewer Part 1 out of 9 Choose the best option for the precursor to the target molecule. Part 2 out of 9 19 Choose the best option for the carboxylic acid precursor to the intermediate ethyl butanoate. points TOET OET carboxylic acid alcohol oị © © carboxylic acid alcohol points ОН он о носH,CH, но Design a synthesis of ethyl...
Show the most efficient synthesis of the product from the starting material. Show all reagents your need over each arrow, and draw all products and intermediates (do not combine steps). You do not need to show the mechanism for any steps. Show all molecules synthesized along the way, and pay attention to stereochemistry. If a racemic mixture is produced in any step, show both products formed. If you make a mixture of regioisomers in any of the steps, place a...
Synthesis using Carbonyla-Substitution Chemistry Preamble This experiment involves the synthesis of target molecules using a-substitution chemistry. You are assigned two target molecules, one of which is best synthesized by an alkylation approach, while the other is best synthesized by an addition or condensation approach. My two target molecules are number 2 and number 12 in the last page. You must do the following: 1. Perform a retrosynthetic analysis on the two target molecules assigned to you. In each case the...
Page 1 Synthesis using Carbonyl O-Substitution Chemistry Preamble This experiment involves the synthesis of target molecules using a-substitution chemistry. You are assigned two target molecules, one of which is best synthesized by an alkylation approach, while the other is best synthesized by an addition or condensation approach. You must do the following: 1. Perform a retrosynthetic analysis on the two target molecules assigned to you. In each case the organic starting material (what you have to work backwards toward) depends...
Chem 249 Synthesis 2-Homework 3-Due 5/2 by 5:00 PM For this assignment you may work in a group, If you do, put all the names of the people who worked on it in the upper right hand corner of the assignment. Only turn in one homework per group Below is a list of starting materials. You may use these for any portion of the assignment. in addition, any molecule you show the synthesis of may be used in subsequent sections....