What is the stereochemical result of a SN1 reaction that occurs at an asymmetric carbon? A) retention B) rearrangement C) inversion D) racemization
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What is the stereochemical result of a SN1 reaction that occurs at an asymmetric carbon? A) retention B) rearrangement C) inversion D) racemization
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- A) SN1 & product with opposite configuration (inversion) B) SN1 & mixture of products (racemic) C) SN2 & product with the same configuration D) SN2 & mixture of products (racemic) E) SN2 & product with opposite configuration (inversion) F) None of the above G) SN1 & product with the same configurationQ5. Using the pK values of the conjugate acids of the leaving groups (pK perp (HBr) = - 9 . pK (H,O)-15.7. PK (HO) -1.7.), explain the difference in reactivity in substitution reactions between: a. CH,Brand CH,OH b. CHOH, and CH,OH Please answer correct.!!Which reaction mechanism will create a shift in the stereochemistry of the resulting product? a SN1 b SN2 c E1 d E2
- In RPLC, Compound A is more polar than compound B. In which column will compound A be more retained than compound B? A. C18 B. C8 C. Phenyl bounded column D. All of the above E. None of the aboveHOw to draw initial structure that matches these peaks. Degree of unsaturation:1Identify the preferred site(s) of electrophilic attack on the compound shown in Image 5. A. ortho/para positions on ring 1 B. meta position on ring 1 C. ortho/para positions on ring 2 D. ortho/para positions on ring 2
- Complete the three following SN1 reactions by drawing the structure of the major product(s). If the product is a mixture of stereoisomers, draw all possibilities and indicate their relationship (i.e. enantiomers or diastereomers).Determine whether the circled hydrogens are enantiotopic, diastereotopic, heterotopic, or homotopic.Draw and name the product(s) and starting material of the following SN1 reaction. Include all stereochemistry (R or S)
- When determining the identity of your unknown neutral product, you analysed it by IR. What feature(s) on your IR spectrum could help you distinguish piperonal from stilbene? options: presence of sp2 C-H stretch near 2850 cm-1 presence of C=O stretch near 1700 cm-1 presence of C=C stretch near 1500 cm-1 more than one of the aboveA sulfonium ion (R3S+) is a stereogenic center if three different alkyl groups are bonded to sulfur because sulfur is surrounded by four different groups, including its lone pair. In assigning an R or S) is a stereogenic center if three different alkyl groups are bonded to sulfur because sulfur is surrounded by four different groups, including its lone pair. In assigning an designation to sulfur, the lone pair is always assigned the lowest priority (4). SAM, S -adenosylmethionine, is a biologically active sulfonium ion that we will learn about in Section 7.16. Locate all the stereogenic centers in SAM, and assign an R,S designation to each center.Is THF a polar protic or aprotic?
