The following nucleophilic substitution occurs with rearrangement. Suggest a mecha- nism for formation of the observed product. If the starting material has the S configura- tion, what is the configuration of the stereocenter in the product? NaOH OH H,0

Give the organic product formed in each of the following reactions, draw a 3-D representation for the product molecule showing the correct configuration

+ H3C- CH₂ - CH2 - COR and have undergone McLafferty rearrangement and Ortho effect respectively. What are the possible fragments obtained as a result of these processes ? COOCH3 OH + (A) [R-CH₂-C (A) R-CH₂-CH₂ - CH₂ - COH @E OH]: [c C6H4 O and CO (B) H₂C=CROH and H₂C = CH₂ [2] : [ C₂H4O3 and CH4 (C) (D) H₂CCROH and C₂H4; [(C6H4O), CO and CH₂OH] RH, C₂H4 and CH₂CO; [(C₂H4O), CO and CH₂OH]

what is the reagent of the bicyclic compound

Kk.321.

Write the structure of the main products, reactants, starting materials, as applicable. The stereochemistry of reactants/products must be appropriate

2305032118517 CHO H-C-OH H-C-OH H₂C₂OH CHO Ho-C-tt A D-aldotetrose yields a mixture of the two compounds shown below when subjected to Kiliani - Fischer Chain extension synthesis. What is the Structure of the aldotetrose? 3 CH₂OH Compound I H-C-OH CHO HO-C-H Ho C-H сно HO-C-H WOO Н-С-он H-C-OH CH ₂ OH Compound II CHO H² C-OH HO-C-H CH₂OH CH ₂ OH CH₂OH CA) (B) (D) (E) Both choices (B) and (C) could be the correct structure of D-erythrose. CHO H₂C-OH HC OH CH ₂ OH ctrl MAND option