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Introduction to 2D NMR

Introduction to 2D NMR. Multipulse techniques. Organic Structure Analysis, Crews, Rodriguez and Jaspars. Organic Structure Analysis, Crews, Rodriguez and Jaspars. ONE-PULSE SEQUENCE. Organic Structure Analysis, Crews, Rodriguez and Jaspars. ONE-PULSE SEQUENCE. (90 o ) x. 1 H. Preparation.

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4 aromatic protons

Can we use 2D to assign this spectrum?. 4 aromatic protons. Structure first determined by Woodward in 1948 (without NMR!). HSQC. CH 2. Identify CH, CH 2 and CH 3 peaks on HSQC (use DEPT if necessary). COSY. H-22 is a good place to start. 22. 23. HSQC.

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+1/2

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