Organic chemistry

Exercise 2

    

A chiral compound of molecular formula $ C_3H_6O$ contains the functional groups $-COOH$ and $OH$. a) Write the structural formula and its name!

$CH_3CHOHCOOH$ 2-Hydroxypropanoic acid α-Hydroxypropanoic acid Lactic acid

b) Establish the spatial representation of the two enantiomers and indicate their configuration in CIP nomenclature (Cahn, Ingold, Prelog)!

c) Represent the R configuration enantiomer in Fischer projection!

(D)-lactic acid

d) Represent the S configuration enantiomer in Newman projection along the axis $C_2\rightarrow C_3$ in its most stable configuration!

e) Give the structural formula of a positional isomer!

$ CH_2OHCH_2COOH $

f) Give the structural formula of 2,3-dihydroxypropanal and specify the isomeric relationship with the molecule represented as a)!

$CH_2OHCHOHCHO$, functional isomer of $CH_3CHOHCOOH$