When cycloocta-1,3-diene reacts with 1 mol HCI, which structure/s correspond/s to the 1,2-addition product/s? Select one or more: CI CI OCI OCI CI CI CI ہے
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- When Br2 is added to buta-1,3-diene at -15 °C, the product mixture contains 60% ofproduct A and 40% of product B. When the same reaction takes place at 60 °C, theproduct ratio is 10% A and 90% B.Show why A predominates at -15 °C and B predominates at 60 °C.best condition for the reaction (1r,2s)-1 bromo-2methylcyclohexane->(s)3-methylcyclohex-1ene(R)-2-chloropentane was reacted with NaSCH3. The compound yielded 65% (S)-2-chloropentane with the enantiomer making up the other 35%. Which mechanism was followed in the reaction? Both, more SN2 Both, more SN1 SN1 SN2
- is steric hinderance not an issue here? why when reacting with KOC(CH3)3 does it yield 2-isopropyl-1-pentene and it yields 2,3-dimethyl-2hexene here?Elimination occurs when (Z)-3-bromohex-3-ene is treated with NaNH2. Under the same conditions, 1-bromocyclohexeneundergoes elimination much more sluggishly. Explain whyThere are two isomeric cyclohexa-1,4-diene products when toluene undergoes the Birch reduction (see Problem 25.24). (a) Draw the mechanism that leads to the formation of the major product. (b) Will the Birchreduction of toluene occur faster or slower than the Birch reduction of benzene itself? Hint: Is –CH3 an electron-donating or an electron-withdrawing group?
- An inexperienced student adds a solution of catalytic H2SO4 and water to the alkene shown below, expecting to produce 1-cyclobutylethan-1-ol. What major product is she surprised to isolate instead?Choose the structure that fits the descriptions below from the pool of choices. 1. An isolated diene 2. an alkene with possible rearrangement product (1,2-H shift) with reaction to HI 3. a diene capable of having 1,2 and 1,4-addition products 4.what is the expected major product of HBr addition to the alkene shown below? Show the mechanism
- Q7 Consider the reaction, where the alkane shown is subjected to radical bromination at 25 °C. Br₂ light Describe the major monobromination product. productii. Draw all the mono - bromo derivatives of X obtained by free radical bromination and determine the relative percentages of each derivative. A table of relative reactivities is given below. For 1,4-dibromocyclohexane:Below is the equation for a nucleophilic substitution reaction and some experimental data. CH3CH2Br + CH3COO- ⇌ CH3CH2CO2CH3 + Br- ΔH=-75 kJ/mol Rate = k [CH3CH2Br][CH3COO-] Which reaction energy profile would be the best representative of the data provided?