of manganese as a mediator for allylations and pinacol couplings in aqueousmedia was investigated. The combination of manganese and copper is found to be a highly effective mediator for the allylation of aryl aldehydes in water. Such a combination is found to be more reactive than other previously reported metals in aqueousmedia. No reaction was observed with either manganese or copper alone as the
as-synthesized active bismuth is applied as a reagent for the synthesis of homoallyl alcohol/homopropargyl alcohol from allylbromide/propargyl bromide and carbonyl compounds in water at \(50\,^\circ }}\hbox C}\). The homoallyl amines are also synthesized from N-tosyl aldimines and allylbromide using active bismuth reagent in good yields. No assistance of organic co-solvent, co-reagent, phase transfer catalyst
Preparation of Allyltin Reagents Grafted on Solid Support: Clean and Easily Recyclable Reagents for Allylation of Aldehydes
作者:Jean-Mathieu Chrétien、Françoise Zammattio、Delphine Gauthier、Erwan Le Grognec、Michaël Paris、Jean-Paul Quintard
DOI:10.1002/chem.200501595
日期:2006.9.6
The preparation of polymer-supported allyltin reagents was shown to be possible for both unfunctionalized and functionalized allyl units. These reagents were treated with aldehydes in the presence of cerium(III) or indium(III) salts to afford high yields of homoallylic alcohols, practically uncontaminated with organotin residues (less than 5 ppm). Some mechanism aspects are briefly discussed and the
Synthesis of active tin: an efficient reagent for allylation reaction of carbonyl compounds
作者:Arun Kumar Sinha、Amit Sil、Anup Kumar Sasmal、Mukul Pradhan、Tarasankar Pal
DOI:10.1039/c4nj01913j
日期:——
ultrasonic vibration, co-solvents/co-reagents, etc. Enhancement of the reaction rate of allylation was observed in water rather than THF. The manipulation of allylation reaction becomes easy with active tin material.
Designed Iron Catalysts for Allylic C−H Functionalization of Propylene and Simple Olefins
作者:Ruihan Wang、Yidong Wang、Ruiqi Ding、Parker B. Staub、Christopher Z. Zhao、Peng Liu、Yi‐Ming Wang
DOI:10.1002/anie.202216309
日期:2023.3
complex was discovered to enable the coupling of the allylic carbon of propylene and carbonyl electrophiles. This approach was also successfully applied to allylic C−H functionalization of simple olefins. Experimental and computationalstudies provided insights into the mechanism and origins of ligand effects on reactivity and diastereoselectivity.