Q4. Label the reaction most likely to take place (E1, SN1, E2, SN2 or a combination of these) under the following conditions. Draw the major product(s), include stereochemistry when relevant. a) b) tBuOK acetone CN CH3OH
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- 4. For the following reaction, draw a reasonable mechanism showing stereochemistry Br-Br3. Draw the expected product/products of the following elimination reaction schemes and state if they are undergoing E1/E2. ✩ Note TsCl, Et3N converts the -OH to -OTS with the same stereochemistry. a) b) Me Me OH OH Et Et H3O+ 1) TSCI, Et3N 2) NaH, DMF ? ?Draw a curved arrow mechanism that accounts for the cyclisation of 2 into F [ please make sure your mechanism takes into account stereochemical considerations including the stereoselectivity of the reaction and clearly indicate if a conrotatory or a disrotatory process is responsible for each of the transformations]. can you please explain how you decide and select the stereoselectivty and how to see if its conrotatory or disrotatory so that i can apply to similar questions. thank you
- Q3. Please provide a curved arrow mechanism that can explain the reaction shown below. i) LDA ii) aq. workup Me Me TBSO CI Q4. a) Identify the main products of the following cycloaddition reactions. In each case, provide a curved arrow mechanism that accounts for their formation. Me OH H Me b) Provide a clear drawing that explains the stereochemistry of the product.Will each of the following reactions follow an El or E2 mechanism? to to HO,For each of the following substrates, predict whether a carbocation rearrangement will take place in an Sy1 or E1 mechanism. Explain. Draw the curved arrow notation illustrating the carbocation rearrangement that is likely to occur. (a) (b) (c) (d) .CI Br Br CI (e) (f) (g) HO. OH (h) H;CH2C CH½CH3 (i) Br CI Br
- For which reaction mechanisms—SN1, SN2, E1, or E2—of thefollowing statement true? A statement may be true for one or moremechanisms. The reaction rate increases with better leaving groups.Please draw the product(s) for each reaction scheme. Be sure to clearly include regio and stereochemistry where applicable.The question is: "Draw the curved arrow mechanism for the reaction between (2S,3S)-3-methylhexan-2-ol and PCl3. Note the specific instructions for each box. Include nonzero formal charges and lone pairs of electrons on all appropriate atoms" I attached screenshots of the picture of the atoms below. What type of reaction (SN1, E1, SN2, or E2) would the reaction be, and how would these molecules interact? The question asks for multiple steps so I am guessing it is either SN1 or E1, but what is the reaction mechanism?