qThe second edition of this book comes with a number of new figures, passages, and problems. Increasing the number of figures from 290 to 448 has necessarily added considerable length, weight, and, expense. It is my hope that the book has not lost any of its readability and accessibility. I firmly believe that most of the concepts needed to learn organic structure determination using nuclear magnetic resonance spectroscopy do not require an extensive mathematical background. It is my hope that the manner in which the material contained in this book is presented both reflects and validates this beliefq--Recall that we initially assumed that our saturated six-membered ring adopts a chair conformation and that the bulky groupse in this case, the ethyl ester ... Thus, the H3 will be axial and its multiplet will show two large trans 3Ja#39;s to the axial 1Ha#39;s at positions 2 and 4. ... Because this 0.4 ppm shift offset is observed so often, it behooves us to commit this tidbit of information to memory for possible future use.
|Title||:||Organic Structure Determination Using 2-D NMR Spectroscopy|
|Author||:||Jeffrey H. Simpson|
|Publisher||:||Academic Press - 2012|