Advices For Studying Organic Chemistry
H HO C HO HO HO H 3 C COOH H H 3 C C COOH H C H 3 C COOH COOH C H 3 C H Mismatch (−) Mismatch (+) (−) Mismatch (+) Mismatch Na+− ...
CHIRALITY AND BIOLOGICAL ACTIVITY HO HO CH 3 CH 3 O O N N O O NH 2 NH 2 NH (^2) NH 2 CH 2 H 2 C CH 3 CH 2 H 2 C CH 3 H N H OH HO ...
Chirality and biological activity: Limonene: S-limonene is responsible for the odor of lemon, and the R-limonene for the odor o ...
Figure 5.7 Only one of the two amino acid enantiomers shown can achieve three-point binding with the hypothetical binding site ( ...
1) Only one compound with the general formula CH 3 X is ever found. 2) Only one compound with the formula CH 2 X 2 or CH 2 XY is ...
images of each other. 2) The plane may pass through atoms, between atoms, or both. Figure 5.8 (a) 2-Chloropropane has a plane of ...
5.6A DESIGNATION OF STEREOCENTER 2-Butanol (sec-Butyl alcohol): HO C CH 3 H CH 2 CH (^3) H C CH 3 OH CH 2 CH (^3) I II R. S. ...
HO C CH 3 H CH 2 CH 3 14 2 or 3 2 or 3 ⇒ HO C C H C C 14 H H HH H HH H 3 (H, H, H) 2 (C, H, H) View the molecule with the group ...
HC OH OH CH 3 CH 2 CH 3 1 2 3 CH 2 CH 3 H 3 C C H^1 2 (^34) (R)-(−)-2-Butanol O HO CH 2 CH 3 CH 3 C (^1) H 2 4 3 HC CH 3 H CH 2 ...
5.7. PROPERTIES OF ENANTIOMERS: OPTICAL ACTIVITY Enantiomers have identical physical properties such as boiling points, melting ...
oscillating electric field and an oscillating magnetic field. Figure 5.9 The oscillating electric and magnetic fields of a beam ...
Polarimeter: Figure 5.12 The principal working parts of a polarimeter and the measurement of optical rotation. If the analyze ...
A substance that rotates plane-polarized light in the clockwise direction is said to be dextrorotatory, and one that rotates pl ...
(R)-(–)-2-Butanol (S)-(+)-2-Butanol []α^25 D = –13.52° [α]^25 D = +13.52° C CH 3 H C 2 H (^5) H C CH 3 HOH 2 C CH 2 OH C 2 H (^5 ...
1) In a solution, many billions of molecules are in the path of the light beam and at any given moment these molecules are prese ...
Figure 5.14 (a) A beam of plane-polarized light encounters a molecule of (R)-2-butanol (a chiral molecule) in a particular orien ...
5.11 MOLECULES WITH MORE THAN ONE STEREOCENTER DIASTEREOMERS Molecules have more than one stereogenic (chiral) center: diastere ...
Diastereomers must have opposite configurations at some (one or more) stereogenic centers, but the same configurations at other ...
Convention: The carbon chain is drawn along the vertical line of the Fischer projection, usually with the most highly oxidized ...
(R)-Lactic acid CH 3 (S)-Lactic acid OH H HOOC Same as Same as 90 o rotation COOH HOH CH 3 C COOH H OH CH 3 C OH HOOC CH 3 H On ...
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