Add time:07/28/2019         Source:sciencedirect.com

Publisher SummarySome of the preparative methods for alkyl phenols and their reactions are unique to this class, and both, therefore, warrant separate treatment from the parent compound. These features are even more prevalent in the hindered phenols, which is a group of substances first synthesized less than half a century ago. The synthesis of alkylphenols bearing purely methylenic sidechains in the benzenoid, naphthalenic, and polycyclic series are considered first. Alkylphenols with sidechains containing oxy or alkoxycarbonyl groups are then reviewed, followed by the mention of those containing Si, N, or S in the sidechain and finally polycyclic types with saturated and unsaturated rings bearing hetero atoms. The reactions discussed fall into several categories—namely, intramolecular, intermolecular processes, which are those producing side-chains bearing oxy or carbonylalkoxy groups, and cyclisations where the sidechain results in the formation of a bicyclic compound and aspects of calixarene chemistry.

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