Question

1) What is the major product of the following reaction? DH OH Cr0, CH, -CH-CH, - CH-OH pyridine cold CH, -CH-CH, -c-H CH, -c-CH-C-H (d) OH CH, -c-CH, -c-OH CH, CH-CH, --OH 2) What is the major product of the following reaction? OH CH3 H, 50, he at CH, CH,-¢-CH CH, CH, (4) CH, (b) CH, CH, CH-CH, H CH-CH, нсH CH, CH, CH, CH-CH, CH CH, CH,CH, CH, CH,

Can someone please tell me if these two answers are right?

Answer 1

1) What is the major product of the following reaction? oH он CrO3 pyridine cold CHJ-CH-CH2" CH2" OH (n) OH CH3" C-CH2-C-H (d) OH CH3-C CH C-OF CH3-CH-CH2-C-OH 2) What is the major product of the following reaction OH CH3 H2SO4 снз-CH2-C-CH " beat CH3 CHI CH-CH CH CH CH /CH CH3 HCH CH с с EH CH CH 1) The correct option is b) chromium oxide (CrO3) with pyridine is known as Collins reagent, and it can oxidize primary alcohols to aldehydes (but not to carboxylic acids) and secondary alcohols to ketones H3C CH3 2) The correct option is d) H3CH2 In option D the product olefin is more stable as it is tetra substituted olefin Hence during the dehydration step, this will form as a major product than the other given olefins