952516-34-6Relevant articles and documents
Convenient synthesis of 2-Amino-4H-chromenes from photochemically generated o-quinone methides and malononitrile
Fujiwara, Makoto,Sakamoto, Masanori,Komeyama, Kimihiro,Yoshida, Hiroto,Takaki, Ken
, p. 59 - 66 (2015/01/30)
2-Amino-4H-chromenes were synthesized in moderate to good yields by the reaction of o-quinone methides photochemically generated from o-(dimethylaminomethyl)phenols with malononitrile. This method was applicable to the synthesis of fluorinated chromenes that were difficult to obtain by other methods. In addition, o-(hydroxymethyl)phenols could be used for the reaction in the presence of tertiary amine bases.
Synthesis of substituted salicylamines and dihydro-2H-1,3-benzoxazines
Anwar, Hany F.,Skatteb?l, Lars,Hansen, Trond Vidar
, p. 9997 - 10002 (2008/02/13)
Phenols were converted to their magnesium salts with the MgCl2-Et3N base system and subsequently reacted with Eschenmoser's salt, affording N,N-dimethyl substituted benzylamines in high to excellent yields. A series of mono N-substituted benzylamines were prepared in one-pot syntheses by ortho-formylation of phenols to corresponding salicylaldehydes, which in turn reacted with amines to imines. The imines were subsequently reduced to mono N-substituted benzylamines. Some of these benzylamines were further converted, without work-up, to mono N-substituted dihydro-2H-1,3-benzoxazines.
