This is an intra-molecular aldol condensation reaction.
It consists of two parts.
1. The formation of aldol
Aldol is:
2.Condensation of aldol to give the final product
Write a reasonable mechanism for this reaction scheme. (6 points) In the space below, write a...
In the space below, write a reasonable mechanism for the reaction scheme shown. . (5 points) In the space below, write a reasonable mechanism for the reaction scheme shown. Br KO HO
15. (6 points) Propose a reasonable step-by-step mechanism for the following conversion: NaOH & Non 8. i H20
9. Write out a reasonable mechanism for the ligase-catalyzed reaction below. (6 pts) CASH+ When A tak + AMP + PP:
Draw mechanism of the pictured reaction. 6. Write out a reasonable mechanism to show how your acid catalyst (diphenylphosphoric aciod, represented below by H-A) and 1,4-benzene dimethanol react with with &-decalactone in the following reaction. (NOTE: this happens on the other side benzenedimethanol, and keeps happening on the groups every time a monomer is added). OH OH H-A catalyst HO
Complete the reaction scheme below by adding the reagents necessary to accomplish the transformation shown (write your answer in the box provided): [6 pts] он он SMe он Cl 3. Draw the mechanism of the reaction shown below: 15 pts] Me H2SO4 он racemic
Provide the major organic product obtained in each step of the reaction scheme shown below. Show all work for full credit. (Thanks ahead!) 2 of 6 1) (12 pts) Provide the major organic product obtained in each step of the reaction scheme shown below: (use the space provided below to give your answer) 1) BH3, ether; NaOH, H202 2) PCC 3) methyl magnesium bromide 4) NH4Cl -> ??? 1-pentene
The Hammett value for the reaction of substituted benzyl chlorides in the scheme below is ρ--03, when R-H, and ρ-_ 5.1, when R-ph. Propose different mechanisms for the two reactions accounting for the difference in the negative value of ρ. Explain your choice of mechanism and indicate the rate limiting step in each case. NaOH, H20, EtOH CI OH R-Ph, p-5.1 The Hammett value for the reaction of substituted benzyl chlorides in the scheme below is ρ--03, when R-H, and...
Predict the major organic product of the following reaction and complete its mechanism below. 1) NaOEt/EtOH 2) CH3CH2CH2Br 3) dilute NaOH/heat 4) H30* 5) heat Complete the curved-arrow mechanism for the scheme below by adding any missing atoms, bonds, charges, nonbonding electrons, and curved arrows. :O O: :Br. CH3CH2OH Do not show curved arrows for this step. Added acid Dilute HH NaOH and heat hydrolyzes the ester. O: Na Br - H20, Na* O: 100-150 °C O:
3. Give a reasonable mechanism for the formation of the product shown in the following reaction. Be sure to use curved arrows to show flow of electrons. [6 points] +2H20 mild acid
Given the information below, write out a reasonable mechanism for the reaction. where not provided also fill in the major product of the reaction B' (strong base) Doubling [B'] doubles rate of rxn. H2O 「 一 SN1