@article{oai:nagasaki-u.repo.nii.ac.jp:00005035,
 author = {Fukuda, Tsutomu and Itoyama, Ryosuke and Minagawa, Terufusa and Iwao, Masatomo},
 issue = {2},
 journal = {HETEROCYCLES},
 month = {},
 note = {In order to estimate the free energy barrier to rotation around the C1-C11 single bond in lamellarins, new lamellarin analogues (1a), (1b), (2a), and (2b) possessing diastereotopic protons or carbons at the C1 aryl moiety were synthesized. Variable-temperature 1H and 13C NMR measurements of these analogues revealed that the free energy barriers to rotation around the C1-C11 axis in 5,6-saturated and 5,6-unsaturated lamellarins were around 72-74 and 83-87 kJ/mol, respectively., HETEROCYCLES, 88(2), pp.1121-1133; 2014},
 pages = {1121--1133},
 title = {Rotational Energy Barrier around the C1?C11 Single Bond in Lamellarins: A Study by Variable-Temperature NMR},
 volume = {88},
 year = {2014}
}