Journal
ADVANCED SYNTHESIS & CATALYSIS
Volume 362, Issue 12, Pages 2397-2418Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.202000195
Keywords
Allylation; Amides; Amino alcohols; Boron; Zinc
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Enantioselective allylation of aldehydes and ketones is a widely used approach for preparing chiral homoallylic alcohols, however, most of the reactions are still mainly performed in organic solvents. Considering their environmental impact, expansion of synthetic technology in water has the highest priority in the organic chemistry field. Here, we report enantioselective reaction of water-stable amido-functionalized allylboronates with acetophenone derivatives in water. The reaction was catalyzed with zinc hydroxide and a didecylamino-functionalized chiral aminophenol reagent, affording a variety of homoallylic alcohols in up to 99% yield. There is a definite proportional correlation between the enantioselectivity and the size of anortho-substituent on the substrate, and the enantiomeric excess of the product reached up to 98%.
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