How do we draw cis-1-"chloro"-"2"-"pentene"?

1 Answer
anor277
Feb 2, 2017

Correctly........

Explanation:

![https://tse3.mm.bing.net/th?id=OIP.6_lGl_QEPWcb9jnWEdU1XAEsCw&pid=15.1&P=0&w=300&h=300](useruploads.socratic.org)

This was taken from the Sigma-Aldrich catalogue, which has always been used as a valuable reference. How would we draw it normally?

We draw a 5-carbon backbone, and in the head position we substitute the chlorine; at C_2, where C_1 is attached to chlorine, we draw an olefinic bond, HC=CH, between C_2 and C_3. The geometry around the olefin, the cis geometry, must also be introduced at this stage.

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