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ACD/Labs Blog

In the second webinar of our series, we will advance to unknown structure elucidation using computer assisted structure elucidation (CASE). CASE systems have significantly contributed to de novo structural elucidation of thousands of natural and synthesized compounds. Here, we will demonstrate how by using a molecular formula, CASE can find the chemical structure that best...

CASE is a powerful approach for elucidating complex chemical structures. In this article, Mikhail Elyashberg and Dimitris Argyropoulos discuss the most likely directions in which CASE will evolve based on its synergistic relationship with advances NMR experiments and computational chemistry.

This article examines the use of ACD/Structure Elucidator to facilitate the teaching of NMR spectroscopic principles and its application in de novo structure elucidation of large complex organic molecules in an upper level organic chemistry class.

CASE (computer‐assisted structure elucidation) first appeared in the late 1960s but really gained traction in the 1990s as more information‐rich 2D NMR experiments were developed. In this article, we discuss the strategies of CASE for small organic molecules in solution. Cognitive grounds and the principal CASE flow‐diagram, as well as the main obstacles impeding structure...

Computer-assisted structure elucidation (CASE) is composed of two steps: (a) generation of all possible structural isomers for a given molecular formula and 2D NMR data (COSY, HSQC, and HMBC) and (b) selection of the correct isomer based on empirical chemical shift predictions. This method has been very successful in solving structural problems of small organic...