Sustainable routes for quantitative green selenocyanation of activated alkynes

Synthesis of Seleno‐Heterocycles via Electrophilic/Radical Cyclization of Alkyne Containing Heteroatoms

“…[196] The synthesis of Z-3-selenocyanatoacrylate 327 and analogues through green selenocyanation of activated alkyne 325 was successfully achieved by using lactic acid is shown in Scheme 104. [197] Also, the selective selenocyanation of activated alkynes 325 via an intermolecular H-bonding activation pathway has been achieved by using glycolic acid. [198] Iodoselanylation of simple alkynes 328 was successfully achieved under mild conditions using commercially available molecular iodine (I 2 ) and diorganyl diselenides 4 as starting materials, this afforded the (E)-β-iodoalkenyl selenides 329 in good to excellent yields and with high regio-and stereoselectivity.…”

Multicomponent Bifunctionalization of Methyl Ketones Enabled by Heterogeneous Catalysis and Solar Photocatalysis in Water

“…In order to meet the requirements of Green Chemistry, the development of an environment-friendly approach for organic synthesis has received considerable interest in recent years. − In general, organic transformations are performed in toxic and volatile organic solvents, which are not only non-renewable fossil fuels but also have potential toxicity and risks. Therefore, great effort has been devoted to developing aqueous phase reactions for organic synthesis. − In addition, as a renewable light energy, sunlight-induced photocatalytic reactions have become a green and simple strategy for organic transformation. − On the other hand, the development of multicomponent transformations has attracted extensive interest because they provide a greater impact with substantial minimization of waste, labor, time, and cost relative to linear syntheses. − Based on the urgent requirements of green synthesis and our research interests in developing green catalytic systems − and C–H functionalization reactions, − herein, we demonstrate a novel and green multicomponent transformation for the bifunctionalization of methyl ketones (Scheme b).…”

Study on Thermal, Thermo-Mechanical, and Flexural Properties of Jute Fiber Surface Modification and Its Reinforced Composite

“…Little published research is available on advanced natural fiber modified reinforced composites. 35,36 Recently, Fontes et al discussed the effects of the mechanical properties of jute-glass hybrid composite laminates. 37 Production of a composite reinforced with a biodegradable, sustainable natural fiber such as jute (being available in various shapes and sizes, easy to produce, recyclable, resistant to corrosion, and having low cost) is the goal.…”