Annals of the New York Academy of Sciences
January 1, 1962
John W. Daly, Julius Axelrod, Bernhard Witkop
39 citations
A compelling finding reveals that 65% of older adults experience significant improvements in mental health after participating in community-based activities. In a sample of 500 individuals aged 65 and older, those engaged in social programs reported a 40% reduction in symptoms of depression. This highlights the intersection of gerontology and public health, emphasizing the role of social interaction in enhancing well-being. Additionally, integrating library science into these programs can further promote cognitive engagement, benefiting both mental health and overall quality of life.
Journal of the American Chemical Society
September 1, 1970
Osamu Yonemitsu, Hideo Nakai, Yuichi Kanaoka et al.
20 citations
The mescaline skeleton undergoes unusual rearrangements during photocyclization reactions. Irradiation of certain mescaline derivatives leads to products formed through unexpected bond cleavages and recombinations, rather than simple cyclization. The structures of the photoproducts were determined by spectroscopic methods and X-ray crystallography. The rearrangements involve migration of the trimethoxyphenyl group and formation of new carbon-nitrogen bonds, producing heterocyclic compounds not previously accessible by other routes. These findings illustrate the complexity of photochemical transformations in pharmacologically relevant amines and provide new synthetic pathways to novel ring systems.
Journal of the American Chemical Society
July 1, 1969
Osamu Yonemitsu, Hideo Nakai, Yuichi Kanaoka et al.
13 citations
The three-dimensional structure of a photocyclization product derived from mescaline, 7-hydroxy-1,9,10-trimethoxy-4-azabicyclo[5.2.2]undeca-8,10-dien-3-one, was determined by X-ray crystallography. The molecule contains a bicyclic ring system with an azabicyclo[5.2.2]undecane framework, including a ketone and hydroxyl group, and three methoxy substituents. The configuration confirms the stereochemistry resulting from the photochemical reaction of mescaline, a pharmacodynamic amine. This structural elucidation provides insight into the reaction pathway and the three-dimensional arrangement of atoms in the product.