Question

Organic Chemistry Organic Chemistry Organic Chemistry Problems Stereochemistry This one has more me thol graps allocted so it toves ponty between these 2 deeres. The curcled one has a Tripe bord so it acts as of it's attached to 3 moe Carbors º-c=o- Problem 3: Clearly indicate of the following molecules are chiral or achiral. If a molecules chiral assign priority numbers to each group that surround the chiral atom. но 0 OH OH Cheral chiral CH3 Chinal Problem 4: Draw all possible stereoisomers for the following molecule. Clearly indicate the relationship each of your isomers have for the other. Nonsuperimposable OH Miror images of ear HSM other. OH for de À 8 Ø These are enantiomers. Problem 5: Draw all possible stereoisomers for the following molecule. Clearly indicate the relationship each of your isomers have for the other. 1 2-diastereo 12,5-dioderec 1&u- enanti 2&B-enoutic 2&u- diaste 384 -dias

Answer 1

Problem No:3 Chiral molecules are not superposable with for this rror images. That said, the condition I happen is that the molecule does not have a plane of symmetry. In problem mo:3 given all four molecules do not contain any plane of symmetry and their mirror images are not superposable. So all the gireen molecules are chiral. A ccording to Cabningold - Prelog (CIP) priority rule.. i) Atom of higher atomic number gets priority. ii) If the first atom in the two groups have same atomic number them relative priority of the group is decided by a comparison of the atomic number of the next atom in the group. ii) Remember that being double or triple bonded to an atom means that the atom is connected to the same atom twice. Following the CIP priority rule all can. number each group of molecule attached to the chiral atoa centre. SO HOO HOO O14 HOH # CH3 OH CH TOHO GHz Considering two chiral centres HO