Abstract
AbstractX‐Ray crystal structure of 4‐(methylthio)‐4‐nitro‐1‐(pyrrolidin‐1‐yl)buta‐1,3‐diene (2b)The C‐atoms of the butadiene chain have been numbered as shown in 1 and 2. These numbers have been retained throughout the discussion for the sake of clarity and consistency. indicates the presence of a CH…︁S hydrogen bond. This might also explain the observed downfield shift of this proton in solution.
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