Lecture 4112014.pdf

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Department
Chemistry
Course
CHEM 2332H
Professor
Christopher J.Douglas
Semester
Spring

Description
Lecture 4112014Friday April 11 2014846 AMCaroxylic Acid DerivativesEster Amides nitriles acid halides anhydrides PropertiesInterconversion of DerivativesTransesterificationEsters1IR 1735 cm but can drop if R engaged in conjugation1735 Lactones cyclic estersno matter how big ring is as long as there is a ring itlactoneThisDeltaLactone bc O is on delta CIR 1735 lower boundgoes up more as the ring gets smallerAmidesRRHprimary amideRH R doesntHsecondary amideNeither R nor RHtertiary amide1IR 1640 1680 cmwhycontributes moremakes the C bond weaker Ochem Page 1
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