Chemical constituents from twigs of Piper hancei was written by Lei, Hai-peng;Chen, Xian-qiang;Qiao, Chun-feng;Liu, Yang;Zhao, Jing. And the article was included in Zhongyaocai in 2014.Safety of (2E,4E)-N-Isobutyldeca-2,4-dienamide The following contents are mentioned in the article:
The chem. constituents from the twigs of Piper hancei were investigated. The chem. constituents were isolated and purified by means of chromatog. techniques including silica gel, Sephadex LH-20 and preparative RP-HPLC. Their structures were elucidated on the basis of physicochem. properties and spectral anal. Eight compounds were isolated and identified as 4-allylpyrocatechol (I), piperlonguminine (II), d-sesamin (III), β-sitosterol (IV), pellitorine (V), piperolactam A (VI) and piperolactam D (VII), resp. Compound I, III, VI and VII are isolated from Piper hancei for the first time. This study involved multiple reactions and reactants, such as (2E,4E)-N-Isobutyldeca-2,4-dienamide (cas: 18836-52-7Safety of (2E,4E)-N-Isobutyldeca-2,4-dienamide).
(2E,4E)-N-Isobutyldeca-2,4-dienamide (cas: 18836-52-7) belongs to amides. Amides can be viewed as a derivative of a carboxylic acid RC(=O)OH with the hydroxyl group –OH replaced by an amine group −NR′R″; or, equivalently, an acyl (alkanoyl) group RC(=O)− joined to an amine group. The presence of the amide group –C(=O)N– is generally easily established, at least in small molecules. It can be distinguished from nitro and cyano groups in IR spectra. Amides exhibit a moderately intense νCO band near 1650 cm−1. By 1H NMR spectroscopy, CONHR signals occur at low fields. In X-ray crystallography, the C(=O)N center together with the three immediately adjacent atoms characteristically define a plane.Safety of (2E,4E)-N-Isobutyldeca-2,4-dienamide
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics