A protecting group or protective group is introduced into a molecule by chemical modification of a functional group to obtain chemoselectivity in a subsequent chemical reaction. It plays an important role in multistep organic synthesis. In many preparations of delicate organic compounds, some specific parts of their molecules cannot survive the re...
Found on
http://en.wikipedia.org/wiki/Protecting_group
(from the article `chemical compound`) Max Bergmann and Leonidas Zervas introduced a more general approach in 1932, based on the formal concept of a protecting group. A schematic ...
Found on
http://www.britannica.com/eb/a-z/p/123
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