Question

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1. Draw and name all the possible compounds resulting from the following aldol reaction, followed by dehydration o Self-condensation CH3CH + CH3CH2CH- Acetaldehyde Propanal Mixed-condensation

Answer 1

Solution: ска - - + СН3 - (на - с - Н acetaldehyde propanal mixed Synthesis: # self condensation of selt acetaldehyde о ес, .. .... .. ..... 5. с . -н Сн, - t-н си, с - Н я сH3 - сн - си, - t-н H2O — сиз - сня си, - с - Н Haroon 3-hydroxy-butanal. Self condensation of propanal СИ На си - с - Н е - Си + и -с – си - сно олон . . сно .. оң сна - си - cи - cи - си, 2 С14 - си- си - сч, 2 methyl-3-hydroxy-pentanal -H2O си. - сна - си = с - Н c - Сн,

# Corros condensatioll / 6H - - 4-c-CH₂ c - CH₂ - CH3 + CH3 -c-H OM -H2O CH3 - CH2 - CH - CH₂ - c - CH₂ - CH₂ -CH=CH-C-H 3-hydroxy - pentanal ан - 0 CH₃-CH₂ - CH 1 + H- H3 ОН un CH -H2o сен - си- с сня - си - Н 2 CH3 2-methyl-3-hydroxy-butunal Summary Summary: OH CH₃ - CH - CH₂-c-M 13. hydroxy-butanal он self. cHz-c-H + CH3-CH₂ - CH self, CH3 - CH2 - CH - CH_PL_H I mixed CH3 2-methyl-3-hydroxy-pentanal OM CH3-CH2-CH-CH₂-6-4 OM hechon penatanal) CH₂ - CH - CH - "-4 (2-methyl-3-hydroxy-butanal). CH3