101113-68-2Relevant articles and documents
-
Howton,Golding
, p. 1,4 (1950)
-
Iron-catalyzed oxyfunctionalization of aliphatic amines at remote benzylic C-H sites
Mbofana, Curren T.,Chong, Eugene,Lawniczak, James,Sanford, Melanie S.
, p. 4258 - 4261 (2016/09/09)
We report the development of an iron-catalyzed method for the selective oxyfunctionalization of benzylic C(sp3)-H bonds in aliphatic amine substrates. This transformation is selective for benzylic C-H bonds that are remote (i.e., at least three carbons) from the amine functional group. High site selectivity is achieved by in situ protonation of the amine with trifluoroacetic acid, which deactivates more traditionally reactive C-H sites that are α to nitrogen. The scope and synthetic utility of this method are demonstrated via the synthesis and derivatization of a variety of amine-containing, biologically active molecules.
ALKALOIDS OF SOME EUROPEAN AND MACARONESIAN SEDOIDEAE AND SEMPERVIVOIDEAE (CRASSULACEAE)
Stevens, Jan F.,Hart, Henk 't,Hendriks, Henk,Malingre, Theo M.
, p. 3917 - 3924 (2007/10/02)
Some 22 pyrrolidine and piperidine alkaloids were detected in the leafy parts of Sedum acre, S. aetnense, S. anglicum, S. brissemoreti, S. farinosum, S. fusiforme, S. lancerottense, S. melanantherum, and S. nudum.In addition to the alkaloids known from S. acre, 1-(2-pyrrolidyl)-propan-2-one and 2-monosubstituted piperidine alkaloids bearing butan-2-one, butan-2-ol, pentan-2-one and pentan-2-ol sidechains were identified.Phenylethylamine was isolated from the vegetative parts of S. album.In S. lydium, S. meyeri-johannis, and 16 species of S. series Rupestria, Aeonium, Greenovia, Jovibarba and Sempervivum no alkaloids could be detected.The results indicate a correlation between the presence of alkaloids and the major evolutionary trends in the European and Macaronesian Crassulaceae. Key Word Index: Sedum; Aeonium; Greenovia; Jovibarba; Sempervivum; Crassulaceae; pyrrolidine and piperidine alkaloids; chemotaxonomy; evolution.