An immunoassay method is described which detects O-desmethyltramadol only. This enables an assay of high sensitivity and specificity avoiding false positive results. The unique antibodies incorporated in the immunoassay method can be combined with antibodies which detect mitragynine to provide an assay which increases the possibility of detecting the commonly found drug combination of O-desmethyltramadol and mitragynine.
A Novel Method for Biomimetic Synthesis of Mannich Bases
作者:Yuan Guo、Jing An、Zhenhuan Lu、Mengjiao Peng
DOI:10.1002/cjoc.201100628
日期:2012.7
reaction has become an important tool for the synthesis of new compounds. Mannich bases can be either directly employed or used as intermediates. In this work, the one‐carbon unit transfer reaction of tetrahydrofolatecoenzyme was initiated. 1,3‐Dimethylimidazolidine as a new tetrahydrofolatecoenzymemodel at formaldehyde oxidation level was used to react with ketone having active hydrogen atoms and amine
This contribution details how a continuous flow reactor was used to react carbonyl compounds with Grignardreagents at room temperature in an efficient and safe manner. Flow rate, residence time and temperature were optimized for the preparation of a small collection of secondary and tertiary alcohols. Excellent yields and general applicability were observed using the set-up protocol. The procedure
A Convenient Regioselective Synthesis of Mannich Bases
作者:C. Rochin、O. Babot、J. Dunogues、F. Duboudin
DOI:10.1055/s-1986-31742
日期:——
A new, convenient regioselective process for aminomethylation of ketones is reported, involving the in situ formation of silyl enol ethers and iminium salts.
报道了一种新的、便捷的酮类化合物氨甲基化区域选择性过程,该过程涉及硅烷基烯醇醚和亚胺盐的现场生成。
Palladium-Promoted Transformation of β-Amino Ketones to Enaminones
作者:Shun-Ichi Murahashi、Yo Mitsue、Tatsuo Tsumiyama
DOI:10.1246/bcsj.60.3285
日期:1987.9
The reaction of β-amino ketones with bis(acetonitrile)dichloropalladium(II) in the presence of triethylamine gives the corresponding enaminones regioselectively. The cyclic β-amino ketones can be converted into the corresponding exocyclic enaminones. The enaminones thus obtained are versatile synthetic intermediates. The reaction of (E)-enaminones with organocuprates gave the corresponding (E)-α,β-unsaturated ketones.