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[1,1'-Binaphthalene]-2,2'-diaMine, N,N,N',N'-tetraMethyl- synthesis

3synthesis methods
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Yield:103459-11-6 73%

Reaction Conditions:

Stage #1: formaldehyd;1,1'-binaphthalene-2,2'-diaminewith formic acid in water; for 15 h;Reflux;
Stage #2: with sodium hydroxide

References:

Jaseer;Prasad;Sekar, Govindasamy [Tetrahedron,2010,vol. 66,# 11,p. 2077 - 2082] Location in patent:supporting information; experimental part