CHAPTER 12 - CHAPTER 12 OXIDATION - REDUCTION &...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
CHAPTER 12 OXIDATION - REDUCTION & ORGANOMETALLIC COMPOUNDS - - INTRODUCTION - - REDUCTION OF >C=O >CHOH - - OXIDATION OF R-OH ( I˚, 2˚ ) >C=O - - ORGANOMETALLIC COMPOUNDS - - SYNTHESIS OF RLi , RMgX - - REACTIONS OF RLi , RMgX - - R 2 CuLi: SYNTHESIS OF ALKANES
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
- - INTRODUCTION - - REDOX REACTIONS - - e- LOSS / GAIN - - H LOSS / GAIN - - O LOSS / GAIN NOTE : IN ORGANIC REACTIONS, EASIER TO TRACK CHANGES IN H , O CONTENT e.g. CONSIDER THE FOLLOWING REACTIONS: HC≡CH à H 2 C=CH 2 CH 3 CH 2 OH à CH 3 CHO CH 3 COCH 3 à CH 3 CH 2 CH 3 CLASSIFY EACH AS : OXIDATION OR REDUCTION - - NOW EXAMINE THE FOLLOWING REACTION: > C = C < à > C H – C O H < - GAIN OF 2 H - GAIN OF 1 O [ NOTE : LOSS OF 1 O OFFSET BY GAIN OF 2 H ] SO ? - - CLASSIFY THIS REACTION ! - - ALSO SEE / DO : PROBLEMS 12.1 – 3 p. 541
Background image of page 2
REDUCTION OF >C=O - - CONSIDER: >C=O à >C H – O – H - - REDUCING AGENTS ? 1] LiAlH 4 ( LAH) 2] NaBH 4 3] H 2 , Ni / Na , ROH - - COMPARISON OF REDUCING AGENTS ( + ) CAN REDUCE SUBSTRATE ( – ) CANNOT REDUCE SUBSTRATE SUBSTRATE LiAlH 4 NaBH 4 H 2 , Ni ACIDS + ESTERS + KETONES + + + ALDEHYES + + + >C=C< + -C≡C- + NOTE : LAH CAN REDUCE ALL TYPES OF >C=O BONDS, ( i.e., C-O π BONDS) BUT NOT C=C OR C≡C BONDS , ( i.e., C-C π BONDS)
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
- - DO PROBLEM : 12.4, p. 543 SELECT REAGENT CAREFULLY ! -
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/14/2008 for the course CHEM 2380 taught by Professor Dandekar during the Winter '07 term at North Texas.

Page1 / 13

CHAPTER 12 - CHAPTER 12 OXIDATION - REDUCTION &...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online