Draw a structure for the exo product formed by cyclopentadiene and maleic anhydride. Because the exo form is more stable than the endo form, why is the endo product formed almost exclusively in this reaction? In addition to the main product, what are two side reactions that could occur in the preparation of cis-Norbornene-5,6-endo-dicarboxylic anhydride from cyclopentadiene and maleic acid in the presence of ethyl acetate and ligroin?
diels alder reaction Draw a structure for the exo product formed by cyclopentadiene and maleic anhydride. Because the exo form is more stable than the endo form, why is the endo product formed almost exclusively in this reaction? In addition to the main product, what are two side reactions that could occur in this experiment? The infrared spectrum of the adduct is given in this experiment. Interpret the principal peaks.
(b) Draw an example of each of the following: (i) 5-exo-tet (ii) 5-exo-trig (iii) 5-endo-dig reactions, In each case show a separate diagram of the starting structure, the transition state structure, and the product(s) structure.
Draw the endo and exo products for the reaction of 1,3(E)-pentadiene with maleic anhydride. Which is the major product?
is this endo or exo? Use the following bond energies to decide if the reaction of CO2 +2H2 --> CH4 + O2 is endo or exo thermic. C--H 414 kJ/mol S C=O in CO2 = 799 kJ/mol 0=0 = 298 H-H = 436 Endothermic Exothermic
Exo co, Was loaned $ 20,000, on January 1, 2017, from the Bank by issuing a three-year bond at a 10% interest rate. Exo co. agreed to pay the principal and interest by paying annual payments in the amount of $ 8042. Given this information, what is the amount of interest expense paid at the end of 2018? Group of answer choices $ 8042 $ 731 $ 2000 $ 1396
The Diels-Alder reaction is a concerted reaction; this means: O a mixture of endo and exo products are formed v the products contain rings all bond making and bond breaking occurs simultaneously the reaction follows Markovnikov's rule
Question 3 (1 point) Label each of the following reactions as exothermic or endothermic ("exo" or "endo"), and according to whether work is done on or by the system, or no work is done at all ("on", "by" or "none")? Note that no "endo-on" cases appear here, as these are always thermodynamically unfavourable. There is no need to do any calculation, use chemical arguments to predict the sign of the enthalpy change. Zn(s)+2HC((aq) ZnCl2(aq) + H2lg) Cl2(aq) +2 KBr(aq) KCI(aq)...
show the mechanism for this reaction 4-NO2Ph Ph INI НН T:O +HOH H,0, NH,Br N3 C) Ph trans-2-(4-Nitropheny)-3-benzoylaziridine 2-exo-6-exo-2,4-Dipheny-6-- nitrophenyl)-1,3-diazabicyclo13.1.0]- hex-3-ene 4-NO2Ph Ph INI НН T:O +HOH H,0, NH,Br N3 C) Ph trans-2-(4-Nitropheny)-3-benzoylaziridine 2-exo-6-exo-2,4-Dipheny-6-- nitrophenyl)-1,3-diazabicyclo13.1.0]- hex-3-ene
Explain how exo-enzymes produced by bacteria which digest different macro-molecules in the surrounding environment, won’t digest these molecules inside the bacterial cells?