Physiological and affective responses to family caregiving in the natural setting in wives versus daughters
作者:Abby C. King、Audie Atienza、Cynthia Castro、Rakale Collins
DOI:10.1207/s15327558ijbm0903_02
日期:2002.9
caregiving wives versus daughters. Participants were 88 women (36 daughters, 52 wives), 50 years of age or older, caring for a relative with dementia. Participants underwent 2 standard laboratory challenges (1 physical and 1 emotional) and ambulatory monitoring in the natural setting. Although wives and daughters showed similar physiological responses to the laboratory challenges, daughters evidenced
Cerium (III) chloride mediated nitrile aldol reactions: Enhanced diastereoselectivities using a chiral organocerium complex
作者:Zejun Xiao、Jack W. Timberlake
DOI:10.1016/s0040-4020(98)00122-7
日期:1998.4
The addition of anhydrous cerium chloride to nitrile aldol reactions has been found to provide high yields of β-hydroxynitriles. Also, the aldol reaction of α,β-unsaturated carbonyl compounds with nitrile enolates in the presence of cerium chloride affords 1, 2 addition exclusively in good to excellent yields. The organocerium complexes of R-(+)-1,1′-bi-2-naphthol have successfully mediated the aldol