Publications by authors named "Jin-Hang Yu"
Based on a novel umpolung strategy, an efficient and highly enantioselective cascade aldol/cyclization/tautomerization of the 2-(2-oxoindolin-3-yl)malononitrile to active carbonyl compounds with excellent diastereo- and enantioselectivity has been developed. Also, various enantio-enriched multifunctional dispiro[2-amino-4,5-dihydrofuran-3-carbonitrile]bisoxindoles with adjacent spiro-stereocenters were conveniently obtained by this novel methodology. Also, the dispiro[2-amino-4,5-dihydrofuran-3-carbonitrile]bisoxindoles were easily transformed into structurally complex molecules without any effect on the diastereo- and enantioselectivity.
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- The study examines the costs of long spines in the rotifer species Brachionus forficula by comparing them to those with short spines.
- Results indicate that rotifers with long spines have longer juvenile and embryo stages but lower population growth rates and reproductive rates than those with short spines.
- Additionally, long-spined rotifers show reduced competition ability and lower starvation resistance, suggesting they expend more energy on spine development rather than reproduction and survival.