Homework Answers
ring and then ring opening reaction takes place then Diels-Alder
reaction takes place to give the product.In case of four membered
ring formation step more electron rich site added first so here
double bond near to nitrogen is more electron rich so only first
product is obtained.
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Isomer Selectivity. Using pictures and a maximum of 10 words, explain why only the first isomer...
Isomer Selectivity. Using pictures and a maximum of 10 words, explain why only the first isomer...
Isomer Selectivity. Using pictures and a
maximum of 10 words, explain why only the first isomer below is
formed. (Helpful Hint: See Helpful Hint 1 above.)
=0 DME 85 °C 2. NH3 NA 110 °C, 18h observed not observed
Mechanism. In the presence of various enamides, benzyne has been observed to undergo a series of...
Mechanism. In the presence of various enamides, benzyne has been observed to undergo a series of cycloadditions and pericyclic ring opening to yield nitrogen heterocycles with high stereoselectivity. Propose a mechanism for the following reaction. (The formation of benzyne requires only as much detail as presented in the lab manual.) DME 85 °C O Iz Ⓡ 110 °C, 18h Helpful Hint 1: Benzyne is capable of performing [2+2] cycloaddition with electron-rich alkenes, as shown below: Оме MeOOME LOMe 0. mpen...
The compound below undergoes E2 elimination using LDA as a strong base, and there is only...
The compound below undergoes E2 elimination using LDA as a
strong base, and there is only one observed product.
Draw the observed product and the theoretically possible isomer
that we don’t see.
Draw the mechanism to produce both.
Draw an energy coordinate diagram for this reaction including
the two low
energy conformations of the starting material (hint: chairs),
the observed product, and the theoretically possible product. Make
sure all relative energies are accurate (ground state and
transition state).
Explain why...
(2) Using pictures and zero words, show how benzyne can act as both an electrophile and...
(2) Using pictures and zero words, show how benzyne can act as both an electrophile and a nucleophile. (3) A student accidentally uses toluene to triturate their crude product instead of methanol. Moments after heating their crude product dissolves completely. (a) Explain why the result was undesirable, drawing comparisons between recrystallization and trituration (6) Propose a solution to recover the student's product involving a technique utilized in this lab. (C) Explain the difficulty using the technique proposed in (b) with...
using pictures and a maximum of 10 words, explain why an oven-dried 5-ml conical vial and...
using pictures and a maximum of 10 words, explain why an oven-dried
5-ml conical vial and drying tube(step 1 and 2 of part 1) are used
in the reaction. do both please! also the notebook pages are the
procedure
(1) Using pictures and a maximum of 10 words, explain why an oven-dried 5-ml conical vial and drying tube (step 1 and 2 of Part 1) are used in the reaction. (2) After the addition of benzophenone to the mixture of...
only need help with c and d, please. just posted the first two pictures because some...
only need help with c and d, please. just posted the first two
pictures because some of the information given in those pictures is
relevant to c and d.
Question 2 Solid Catalyst thene Tex Tube Glass Wool with Ethanol #Hansen Burner Ethene, C2H4(a) (molar mass 28.1 g/mol), may be prepared by the dehydration of ethanol, C2H5OH) (molar mass 46.1 g/mol), using a solid catalyst. A setup for the lab synthesis is shown in the diagram above. The equation for...
it is possible to construct a telescope using only mirrors
It is possible to construct a telescope using only mirrors, not lenses. Such a "Cassegrain" telescope is shown here. Analysis of such compound devices proceeds simply by doing one step (i.e. finding the first image) and then the next (use the image as the object for the next mirror). The large parabolic primary mirror has a focal lengh of 50.0 cm. The hyperbolic secondary is mounted 43.0 cm in front of the large mirror. The image is formed 3.00 cm behind the large mirror (where...
only need help with e and f, please. just posted the first three pictures because some...
only need help with e and f, please. just posted the first
three pictures because some of the information given in those
pictures is relevant to e and f. thank you!
Question 2 Solid Catalyst thene Tex Tube Glass Wool with Ethanol #Hansen Burner Ethene, C2H4(a) (molar mass 28.1 g/mol), may be prepared by the dehydration of ethanol, C2H5OH) (molar mass 46.1 g/mol), using a solid catalyst. A setup for the lab synthesis is shown in the diagram above. The...
answer question # 1 ONLY! provide 1-2 examples no more than 100 words Verizon 9:35 PM...
answer question # 1 ONLY!
provide 1-2 examples
no more than 100 words
Verizon 9:35 PM 86% ilearn.laccd.edu Grades People Syllabus Modules Two interesting and thought-provoking questions to consider here-but only ONE to answer. (You don't get extra credit for answering both) NetTutor Chat You are to respond to one (and only one) of the 2 questions Office 365 below. These questions pertain to the concept of variation. This is the first of two assignments from Module 2. based on...
using C++ only. The findFirstZero function is supposed to find the first element in an array...
using C++ only. The findFirstZero function is supposed to find the first element in an array whose value is zero, and sets the parameter p to point to that element, so the caller can know the location of that element holding the value zero. Explain why this function won't do that, and show how to fix it. Your fix must be to the function only; you must not change the main routine below in any way. As a result of your fixing...
Isomer Selectivity. Using pictures and a
maximum of 10 words, explain why only the first isomer below is
formed. (Helpful Hint: See Helpful Hint 1 above.)
=0 DME 85 °C 2. NH3 NA 110 °C, 18h observed not observed
Mechanism. In the presence of various enamides, benzyne has been observed to undergo a series of cycloadditions and pericyclic ring opening to yield nitrogen heterocycles with high stereoselectivity. Propose a mechanism for the following reaction. (The formation of benzyne requires only as much detail as presented in the lab manual.) DME 85 °C O Iz Ⓡ 110 °C, 18h Helpful Hint 1: Benzyne is capable of performing [2+2] cycloaddition with electron-rich alkenes, as shown below: Оме MeOOME LOMe 0. mpen...
The compound below undergoes E2 elimination using LDA as a
strong base, and there is only one observed product.
Draw the observed product and the theoretically possible isomer
that we don’t see.
Draw the mechanism to produce both.
Draw an energy coordinate diagram for this reaction including
the two low
energy conformations of the starting material (hint: chairs),
the observed product, and the theoretically possible product. Make
sure all relative energies are accurate (ground state and
transition state).
Explain why...
(2) Using pictures and zero words, show how benzyne can act as both an electrophile and a nucleophile. (3) A student accidentally uses toluene to triturate their crude product instead of methanol. Moments after heating their crude product dissolves completely. (a) Explain why the result was undesirable, drawing comparisons between recrystallization and trituration (6) Propose a solution to recover the student's product involving a technique utilized in this lab. (C) Explain the difficulty using the technique proposed in (b) with...
using pictures and a maximum of 10 words, explain why an oven-dried
5-ml conical vial and drying tube(step 1 and 2 of part 1) are used
in the reaction. do both please! also the notebook pages are the
procedure
(1) Using pictures and a maximum of 10 words, explain why an oven-dried 5-ml conical vial and drying tube (step 1 and 2 of Part 1) are used in the reaction. (2) After the addition of benzophenone to the mixture of...
only need help with c and d, please. just posted the first two
pictures because some of the information given in those pictures is
relevant to c and d.
Question 2 Solid Catalyst thene Tex Tube Glass Wool with Ethanol #Hansen Burner Ethene, C2H4(a) (molar mass 28.1 g/mol), may be prepared by the dehydration of ethanol, C2H5OH) (molar mass 46.1 g/mol), using a solid catalyst. A setup for the lab synthesis is shown in the diagram above. The equation for...
only need help with e and f, please. just posted the first
three pictures because some of the information given in those
pictures is relevant to e and f. thank you!
Question 2 Solid Catalyst thene Tex Tube Glass Wool with Ethanol #Hansen Burner Ethene, C2H4(a) (molar mass 28.1 g/mol), may be prepared by the dehydration of ethanol, C2H5OH) (molar mass 46.1 g/mol), using a solid catalyst. A setup for the lab synthesis is shown in the diagram above. The...
answer question # 1 ONLY!
provide 1-2 examples
no more than 100 words
Verizon 9:35 PM 86% ilearn.laccd.edu Grades People Syllabus Modules Two interesting and thought-provoking questions to consider here-but only ONE to answer. (You don't get extra credit for answering both) NetTutor Chat You are to respond to one (and only one) of the 2 questions Office 365 below. These questions pertain to the concept of variation. This is the first of two assignments from Module 2. based on...
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