Lecture_26___Nov_1__2007

Lecture_26___Nov_1__2007 - below, identify the product and...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Chemistry 357 - Pre-lecture Problem: November 1, 2007 (Challenging) Question 1. ( 6 Marks ) Professor Jones had a student doing research in his lab. The student had performed a Diels-Alder reaction but had forgotten to record the identity of the dienophile that he had used. The reaction worked well and isolated a product in good yield. He had determined a molecular formula from MS data but had no idea what the product was. Although Professor Jones wasn t pleased with the student, he sent the student to collect 1 H and 13 C NMR spectra. From the data
Background image of page 1

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

View Full DocumentRight Arrow Icon
Background image of page 2
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: below, identify the product and the dienophile that he must have used. (HINT: Symmetry) ? ? Molecular Formula = C 12 H 16 O 2 1 H (simulated spectra) 13 C (simulated spectra) 4 H 6 H 6 H Question 2. (8 Marks) Provide a structure that fits the following simulated NMR data sets. a) C 9 H 10 O 2 ANSWER 4 H 3 H 3 H 1 H (simulated spectra) 13 C (simulated spectra) b) C 11 H 14 ANSWER 3 H 5 H 1 H 2 H 3 H Two peaks overlapping at 128.5 and 128.6 ppm 1 H (simulated spectra) 13 C (simulated spectra)...
View Full Document

This note was uploaded on 03/29/2009 for the course CHEM 3570 taught by Professor Ganem, b during the Fall '06 term at Cornell.

Page1 / 3

Lecture_26___Nov_1__2007 - below, identify the product and...

This preview shows document pages 1 - 3. Sign up to view the full document.

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