2‐Amino‐4H‐chromenes were synthesized in moderate to good yields by the reaction of o‐quinone methides photochemically generatedfrom 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.
Triethylsiloxymethyl-<i>N</i>,<i>N</i>-dimethylamine, Et<sub>3</sub>SiOCH<sub>2</sub>NMe<sub>2</sub>: A Dimethylaminomethylation (Mannich) Reagent for O-H, S-H, P-H and Aromatic C-H Systems
作者:Paulina E. Gonzalez、Hemant K. Sharma、Sanchita Chakrabarty、Alejandro Metta-Magaña、Keith H. Pannell
DOI:10.1002/ejoc.201700902
日期:2017.10.10
Et3SiOCH2NMe2, readily made in high yield by the hydrosilylation reaction between Et3SiH and DMF, is an excellent (N,N-dimethylamino)methyl transfer agent to a representative range of aliphatic alcohol, thiol and Ph2PH (E-H) materials. The reactions are almost instantaneous at room temperature in inert solvents and require no activating agents to produce E-CH2NMe2 products in high yield and illustrate the
Phenoxy and phenylthio, amino substituted benzocycloalkane derivatives in the treatment and prevention of drug-resistant protozoal infections
申请人:MERRELL DOW PHARMACEUTICALS INC.
公开号:EP0371508A1
公开(公告)日:1990-06-06
Pharmaceutical compositions comprising antiprotozoal agents in conjunction with a phenoxyamino-substituted benzocycloalkane derivative are effective in the prevention and treatment of a drug-resistant protozoal infection, particularly, drug-resistant malarial infection in humans.