作者:Daniel W. Armstrong、Yan-Song Liu、Lingfeng He、K. Helen Ekborg-Ott、Charles L. Barnes、Charles F. Hammer
DOI:10.1021/jf010991f
日期:2002.1.1
Low levels of synthetic auxins are used as root growth promoters for a wide variety of botanicals. When properly used, they can produce earlier and more prolific root growth. Indole-3-succinic acid (ISA) is a chiral compound that can be synthesized as a racemate. Its enantiomers were resolved by both chromatography and diastereomeric crystallization. The absolute configuration of each enantiomer was determined by X-ray crystallography and then tested for auxin activity. The relative effectiveness of the ISA enantiomers was determined and compared to the achiral synthetic auxin indole-3-butyric acid and to the natural auxin indole-3-acetic acid.
US6753297B2
申请人:——
公开号:US6753297B2
公开(公告)日:2004-06-22
Catalytic Enantioselective Friedel-Crafts Alkylation of Indoles with Fumarate Derivatives in the Presence of Chiral Palladium Complexes
作者:Dae Kim、Hyun Lee
DOI:10.1055/s-0031-1290424
日期:2012.7
The catalyticenantioselective Friedel–Crafts alkylation reaction promoted by chiral palladium complexes is described. The treatment of indoles with fumarate derivatives under the mild reaction conditions afforded the corresponding Friedel–Crafts alkylation adducts with high enantioselectivities (up to 91% ee).