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s-cis and s-trans

…that there is free rotation about sigma bonds, so we say, “s-cis” and “s-trans” to distinguish it from “cis” and “trans” configurations which are locked. As we’ll soon see, in…

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More On 1,2 and 1,4 Additions To Dienes

…Addition Pattern – Free Radical Addition Note 1. This example was inspired by an exam question I once saw from an instructor/university I choose not to mention, which gave “1,4”…

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Diels Alder Practice Problems

These practice questions will test you on recognizing conjugated dienes, comparing the reactivity of dienes in the Diels-Alder reaction, providing the major products of Diels-Alder reactions, understanding how to apply…

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Aromatic Synthesis (1) – “Order Of Operations”

…of Contents Synthesis of Aromatic Compounds: “Order of Operations” Matters Example #1: Synthesis of m-Bromonitrobenzene From Benzene Example #2:Synthesis of p-Ethylacetophenone From Benzene Summary: To Obtain The Para- Product, Install…

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Some Reactions of Azides

…DOI: 10.1002/0471264180.or003.09 An old but comprehensive review of the Curtius reaction, which includes the history of the discovery of this rearrangement, substrate scope, limitations, comparison to other similar reactions, and…

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