Showing papers by "Christian V. Stevens published in 2009"
263 citations
TL;DR: Undecenoic acid or undecylenic acid is a fatty acid derived from castor oil that, owing to its bifunctional nature, has many possibilities to develop sustainable applications.
Abstract: A lot of attention is currently being paid to the transition to a biobased economy. In this movement, most efforts concentrate on the development of bioenergy applications including bioethanol, biodiesel, thermochemical conversion of biomass, and others. However, in the energy sector other nonbiomass alternatives are known, whereas no valuable alternatives are available when thinking about chemical building blocks. Therefore, it is also essential to develop new routes for the synthesis of bio-based chemicals and materials derived thereof. Such intermediates can originate either from plants or from animals. Castor oil is a non-edible oil extracted from the seeds of the castor bean plant Ricinus communis (Euphorbiaceae), which grows in tropical and subtropical areas. Globally, around one million tons of castor seeds are produced every year, the leading producing areas being India, PR China, and Brazil.2 10-Undecenoic acid or undecylenic acid is a fatty acid derived from castor oil that, owing to its bifunctional nature, has many possibilities to develop sustainable applications.
125 citations
TL;DR: In this article, N -( o -ethylbenzyl)chitosan derivatives were used as antimicrobial agents against the crown gall disease Agrobacterium tumefaciens (Family: Rhizobiaceae; Class: Alpha Proteobacteria) and the soft mold disease Erwinia carotovora by the nutrient agar dilution method.
92 citations
TL;DR: A two-step synthesis of 1-cyanoisoindoles starting from ethynylbenzaldehyde is presented, with the key step is a mild, high-yielding, gold-catalyzed rearrangement of N-allylic aminonitriles.
39 citations
TL;DR: A review of different existing processes for converting side-stream refining products (soapstock, acid oil and deodorized distillates) into new generation energy sources is presented in this paper.
Abstract: The main focus of this review is to offer an overview of different existing processes for converting side-stream refining products (soapstock, acid oil and deodorized distillates) into new generation energy sources. The review article calls for more research around the SSRPs for its efficient conversion into biodiesel/biofuel and outlines drawbacks of the methodologies reported in the literature so far.
38 citations
TL;DR: A continuous flow procedure has been elaborated for the copper(II)-mediated N- and O-arylation of a range of compounds with arylboronic acids using a commercial microreactor setup paving the way for efficient scalability.
34 citations
TL;DR: In this paper, the synthesis of tyromycin A and its lower homologue, involving as featuring steps a transition metal catalyzed atom transfer radical cyclization and a functional rearrangement of the polyhalogenated 2-pyrrolidinones thus obtained, are described.
16 citations
TL;DR: In this article, an improved synthetic route for the preparation of the new alkaloid setigerine, isolated from Papaver setigerum DC, and some new 3,4-dihydropapaverine and papaverine derivatives is reported.
5 citations
20 Apr 2009
4 citations
TL;DR: The precursors for functionalized isoquinolines were synthesized by chlorination of 1-alkyl-3,4-dihydroisoquinoline with N-chlorosuccinimide as mentioned in this paper.
4 citations
TL;DR: In this paper, a continuous flow procedure for the copper-II-mediated N-and O-arylation of a range of compounds with arylboronic acids using a commercial microreactor setup was elaborated.
Abstract: A continuous flow procedure has been elaborated for the copper(II)-mediated N- and O-arylation of a range of compounds with arylboronic acids using a commercial microreactor setup. The compounds could be continuously generated in good yields paving the way for efficient scalability.
TL;DR: In this article, an improved synthetic route for the preparation of the new alkaloid setigerine, isolated from Papaver setigerum DC, and some new 3,4-dihydropapaverine and papaverine derivatives is reported.
Abstract: A novel and improved synthetic route for the preparation of the new alkaloid setigerine, isolated from Papaver setigerum DC, and some new 3,4-dihydropapaverine and papaverine derivatives is reported. This method is based on the side chain chlorination of 1-benzyl-3,4-dihydroisoquinolines using N-chlorosuccinimide (NCS) and subsequent reaction with sodium methoxide in methanol to give the corresponding isoquinolines.