Current Organic Chemistry - Volume 21, Issue 6, 2017

In recent decade, gold nanoclusters with atomic precision (AunLm where L = ligand) have been demonstrated as a new and promising class of nanocatalysts. The AunLm catalysts of different sizes possess unique crystal and electronic structures, thereby providing an excellent opportunity to correlate the intrinsic catalytic performance with the catalysts’ structure as well as to study mechanisms of chemical reactions catalyze Read More

Much attention has been paid to coenzyme Q10 (CoQ10) as a treatment for cardiovascular and neurological diseases because of the antioxidant activity since 1959. CoQ10 is non-toxic. It has a wide range of health effects and is a popular commercial supplement. Despite these advantages, CoQ10 faces synthetic challenges and low yield. The synthesis of CoQ10 is very difficult. Researchers have described several semi-synth Read More

Achmatowicz reaction has emerged as an efficient tool in organic synthesis since its discovery in 1971 by Achmatowicz Jr.The original protocol went through several advantageous variations. Biocatalytic and metal catalyzed versions of this reaction are some of the significant achievements, which further enhanced its effectiveness. The pyranone product of the Achmatowicz reaction is a versatile building block for the synthesis of bi Read More

Spermidine alkaloids are polyaminated macrocycles containing a lactam ring, which are biosynthetically derived from L-Orn or L-Arg via putrescine intermediates. The presence of these polyamines in nature is very limited, occurring in only a few plant families, and therefore the isolation of spermidine alkaloids serves chemotaxonomic purposes. The interest in the isolation and synthesis of these alkaloids also results from th Read More

Background: Recent studies highlighted that biochar efficiency to improve soil fertility is enhanced after it is blended with fresh organic materials. It was suggested that organic coating of inner-porous biochar surfaces acts as a kind of “glue” for plant-nutrients, thereby allowing their slow release towards plant-roots and/or microorganisms. Objective: The aim of the present study is to improve the understanding of the nature of th Read More