Tetrahedron Letters p. 2225 - 2228 (1981)
Update date:2022-08-04
Topics:
Ollis, W. David
Stephanatou, Julia Stephanidou
Stoddart, J. Fraser
Unal, Gulten G.
Williams, David J.
An X-ray structure analysis shows that the 5,18-dimethyl derivative (5) of the title compound (4) crystallises from xylene as a 1:1 inclusion compound in which the host molecules adopt propeller-like conformations (7 and 7*) with almost perfect C2 symmetry.Dynamic 1H n.m.r. spectroscopy shows that the 5,18-dibenzyl derivative (6) of (4) forms a 1:1 inclusion compound with ethanol in the solid state and undergoes ring inversion (7 <*> 7*) between enantiomeric propeller-like conformations in solution against a barrier of 21.1 kcal/mol.
View MoreXiaoyi Jin Jing Chemical Co., Ltd.
website:http://www.jinjingchemical.com/
Contact:358-7663760 13453855455
Address:xixiebao villiage xiabao town
Chongqing Changfeng Chemical Co., Ltd.
website:http://www.changfengchem.com
Contact:+86-23-67896333
Address:30th Floor, Longhu Ziduxingzuo Building A, 1st Branch,YuSong Rd., Yubei District, Chongqing, China
Hangzhou Donglou Bio-nutrient Co., Ltd.
Contact:+86-571-82225795,13967112289
Address:Louta Town, Xiaoshan,Hangzhou,Zhejiang
Contact:86-21-50966856
Address:Building 5,300 Chuanzhan Road,Pudong New District,Shanghai
HENAN NEW BLUE CHEMICAL CO.,LTD
website:http://www.newbluechem.com
Contact:86-371-55170693/55170694
Address:Zhengzhou International Trade New Territory,Jinshui District,Zhengzhou ,China
Doi:10.1007/BF00505685
(1981)Doi:10.1021/jo020720j
(2003)Doi:10.1021/jm950872p
(1996)Doi:10.1016/j.tet.2004.07.048
(2004)Doi:10.1021/ol300296k
(2012)Doi:10.1039/c39810000556
(1981)
