'Nucleophile' presentation slideshows

Reactions of Enols and Enolates

Reactions of Enols and Enolates. Ketones and aldehydes are in equilibrium with a small amount of the corresponding enol . This can be problematic, if one desires to produce a stereogenic center a to a C=O.

1.02k views • 68 slides

Reactions of alkyl halides: nucleophilic Substitution and elimination

Reactions of alkyl halides: nucleophilic Substitution and elimination. Dr. Sheppard CHEM 2412 Fall 2014 McMurry (8 th ed.) sections 10.1, 11.1-11.5, 11.7-11.10, 11.12. Alkyl Halides. Contain F, Cl, Br, or I Widely used in:

1.28k views • 67 slides

REACTION INTERMEDIATES & MECHANISM

REACTION INTERMEDIATES & MECHANISM. Presented By. Jasmeen Quadir KV No. 3 Bhopal. Reaction Intermediates.

7.92k views • 58 slides

16.9 Preparation of Epoxides: A Review and a Preview

16.9 Preparation of Epoxides: A Review and a Preview. Preparation of Epoxides. Epoxides are prepared by two major methods. Both begin with alkenes. reaction of alkenes with peroxy acids (Section 6.18)

561 views • 42 slides

RNA catalysis

644 views • 37 slides

Important Synthetic Technique: protecting groups. Using Silyl ethers to Protect Alcohols

Important Synthetic Technique: protecting groups. Using Silyl ethers to Protect Alcohols. Protecting groups are used to temporarily deactivate a functional group while reactions are done on another part of the molecule. The group is then restored.

480 views • 34 slides

Ethers, Sulfides, Epoxides

Ethers, Sulfides, Epoxides. Variety of ethers, ROR. Aprotic solvent. Reactions of ethers. Ethers are inert to (do not react with) Common oxidizing reagents (dichromate, permanganate) Strong bases Weak acids. But see below.

493 views • 26 slides

S N 1 vs. S N 2 vs. E1 vs. E2

S N 1 vs. S N 2 vs. E1 vs. E2. Factors affecting the type of reaction an alkyl halide undergoes include: Strength of nucleophile or base Type of alkyl halide methyl, 1 o , 2 o , 3 o , allylic or benzylic. S N 1 vs. S N 2 vs. E1 vs. E2.

352 views • 17 slides