"The protecting group reagent must react selectively (kinetic chemoselectivity) in good yield to give a protected substrate that is stable to the projected reactions. The protecting group must be selectively removed in good yield by readily available reagents. The protecting group should not have additional functionality that might provide additional sites of reaction."
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George S. Zweifel and Michael H. Nantz, Modern Organic Synthesis (2006), Ch. 3 : The Concept of Protecting Functional Groups
https://en.wikiquote.org/wiki/Protecting_group
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Protecting group
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