RESUMO
A simple aggregation-induced emission-based fluorescence probe (1) for Mg(2+) was synthesized by condensation of benzene-1, 2-diamine with 5-bromo-2-hydroxybenzaldehyde, This compound shows favourable character of the AIE-active molecules. More importantly, after addition of Mg(2+) to probe (1) in acetonitrile, the solution changed from colorless to yellow colour solution under ultraviolet (UV) radiation obtained from hand-held UV lamp, this finding suggested that probe (1) can be used to detect Mg(2+) by colorimetric detection. Detection limit can reach 2.31 × 10(-5) M(-1). The practical value of the selective and sensitive fluorescence indicators was confirmed by its application to detection of magnesium ion in acetonitrile.
RESUMO
The allylation reactions of aromatic aldehydes and ketones were carried out in 31-86% yield using SnCl(2)-H(2)O system under ultrasound irradiation at r.t. for 5h. The reactions in the same system gave homoallyl alcohols in 21-84% yield with stirring at r.t. for 24h. Compared with traditional stirring methods, ultrasonic irradiation is more convenient and efficient.
Assuntos
Aldeídos/química , Hidrocarbonetos Aromáticos/química , Hidrocarbonetos Aromáticos/efeitos da radiação , Cetonas/química , Sonicação/métodos , Compostos de Estanho/química , Compostos de Estanho/efeitos da radiação , Água/química , Aldeídos/efeitos da radiação , Cetonas/efeitos da radiação , Microfluídica/métodos , Doses de RadiaçãoRESUMO
In the crystal structure of the title compound, C(13)H(20)NO(+)·Cl(-), the morpholine ring is in a chair conformation and the mol-ecules are linked by weak inter-molecular C-Hâ¯Cl hydrogen bonding.
RESUMO
In the title compound, C(12)H(18)NO(+)·Cl(-), the cations and anions are inter-connected by weak C-Hâ¯Cl hydrogen bonds. The morpholine ring system adopts a chair conformation.
