Organic Chemistry 1

Organic Chemistry 1 Lab

Organic Chemistry 2

Organic Chemistry 2 Lab

Recrystallization II 27 Crystallization Summary 1. Choosing the Solvent. “Like dissolves like.” Some common solvents are water, methanol, ethanol, ligroin, and toluene. When you use a solvent pair, dissolve the solute in the better solvent and add the poorer solvent to the hot solution until saturation occurs. Some common solvent pairs are ethanol-wa

CHEM | 355 | Organic Chemistry 1 Lab | lecture_notes |Recrystallization II 27 Crystallization Summary 1. Choosing the Solvent. “Like dissolves like.” Some common solvents are water, methanol, ethanol, ligroin, and toluene. When you use a solvent pair, dissolve the solute in the better solvent and add the poorer solvent to the hot solution until saturation occurs. Some common solvent pairs are ethanol-wa

Chem 360 Jasperse Ch. 13 Notes. Spectroscopy 1 Short Summary of 1H-NMR Interpretation For fuller explanation, see: http://web.mnstate.edu/jasperse/Chem355/H-NMR.doc.pdf I. Number of Signal Sets II. Integration These must be simple whole-number ratios (2:1, 3:1, 3:2, etc..) III. “Chemical Shifts” of the Signal Sets 9’s (9.0-10.0) Aldehyde sp 2 hy

CHEM | 360 | Organic Chemistry 2 | exam |Chem 360 Jasperse Ch. 13 Notes. Spectroscopy 1 Short Summary of 1H-NMR Interpretation For fuller explanation, see: http://web.mnstate.edu/jasperse/Chem355/H-NMR.doc.pdf I. Number of Signal Sets II. Integration These must be simple whole-number ratios (2:1, 3:1, 3:2, etc..) III. “Chemical Shifts” of the Signal Sets 9’s (9.0-10.0) Aldehyde sp 2 hy

13C-NMR, IR Interpretation 88 Summary of C13-NMR Interpretation 1. Count how many lines you have. This will tell you how many types of carbons you have. (Symmetry equivalent carbons can at times cause the number of lines to be less than the number of carbons in your structure.) a. Each “unique”carbon gives a separate line. b. Symmetry duplicates give the sam

CHEM | 365 | Organic Chemistry 2 Lab | lecture_notes |13C-NMR, IR Interpretation 88 Summary of C13-NMR Interpretation 1. Count how many lines you have. This will tell you how many types of carbons you have. (Symmetry equivalent carbons can at times cause the number of lines to be less than the number of carbons in your structure.) a. Each “unique”carbon gives a separate line. b. Symmetry duplicates give the sam

S N 2, S N 1 Reactions; Mechanisms and Arrow-Pushing 48 Chem 355-Jasperse STRUCTURAL EFFECTS ON SUBSTITUTION REACTIONS General Procedure: In each test, add 5 drops of haloalkane to a test-tube, then add 1 mL of solution (NaI/acetone for the S N 2 reactions, AgNO 3 /ethanol for the S N 1 reactions), and mix by stirring vigorously with a boiling stick, and watch f

CHEM | 355 | Organic Chemistry 1 Lab | lecture_notes |S N 2, S N 1 Reactions; Mechanisms and Arrow-Pushing 48 Chem 355-Jasperse STRUCTURAL EFFECTS ON SUBSTITUTION REACTIONS General Procedure: In each test, add 5 drops of haloalkane to a test-tube, then add 1 mL of solution (NaI/acetone for the S N 2 reactions, AgNO 3 /ethanol for the S N 1 reactions), and mix by stirring vigorously with a boiling stick, and watch f

H-NMR: Some Familiar Groups that can become Easy to Recognize Hydroxyl 1H no splitting => hydroxyl. (Chem shift could be anywhere.) Aromatics 5H in 7’s => mono-substituted benzene 4H in 7’s => di-substituted benzene 4H in 7’s, with 2 doublets = para di-substituted benzene Methyl Groups: Clean 3H integral. What’s the Methyl Connected to? (each will integr

CHEM | 360 | Organic Chemistry 2 | study_guides |H-NMR: Some Familiar Groups that can become Easy to Recognize Hydroxyl 1H no splitting => hydroxyl. (Chem shift could be anywhere.) Aromatics 5H in 7’s => mono-substituted benzene 4H in 7’s => di-substituted benzene 4H in 7’s, with 2 doublets = para di-substituted benzene Methyl Groups: Clean 3H integral. What’s the Methyl Connected to? (each will integr

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