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ChemInform Abstract: Guanidine Hydrochloride as an Organocatalyst for N-Boc Protection of Amino Groups.

✍ Scribed by Fatemeh Jahani; Mahmood Tajbakhsh; Hamid Golchoubian; Samad Khaksar

Publisher
John Wiley and Sons
Year
2011
Weight
41 KB
Volume
42
Category
Article
ISSN
0931-7597

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## Abstract **The moderate nucleophilicity** of the axially chiral amino sulfonamide (__S__)‐**1** suppresses the problematic side reactions, including aldol reactions, in the asymmetric Mannich reaction of N‐Boc‐protected imines with aldehydes. The corresponding adducts are obtained in good yield