Helvetica Chimica Acta p. 2531 - 2537 (1980)
Update date:2022-08-02
Topics:
Buchecker, Richard
Eugster, Conrad Hans
The carotenoid mixture isolated from the yellow flowers of Lamium montanum PERS. (Labiatae) consists of more than 75percent of carotenoids with allenic end groups.Besides 32percent of neoxanthin/neochrome we isolated 44percent of mimulaxanthin (1a), a very rare carotenoid so far only found in Mimulus sp. (Scrophulariaceae).Its absolute configuration was determined by oxidative degradation to the known ketone 3 ("grasshopper ketone") and by spectroscopic and chiroptical comparisons with neoxanthin (6).Mimulaxanthin (1a) therefore is (3S,5R,6R,3'S,5'R,6'R)-6,7,6',7'-tetradehydro-5,6,5',6'-tetrahydro-β,β-carotene-3,5,3',5'-tetraol.Deepoxyneoxanthin, which was reisolated from Mimulus sp. is (3S,5R,6R,3'R)-6,7-didehydro-6,7-dihydro-β,β-carotene-3,5,3'-triol (2), as shown by spectroscopic and chemical correlation with neoxanthin (6; de-epoxydation by BuLi/FeCl3).
View MoreWuhan Heisenberg Technology Co.,Ltd.
Contact:86-18986005060-18986005060
Address:No.2022 Jiefang Road,JiangAn District
Zipont chem(wuhan)Tech co.,Ltd
Contact:+86-27-87587198
Address:wuhan
Guangzhou Chemical Reagent Factory
Contact:+86-20-8435 9820 or 8435 7345
Address:Southern Guangzhou, Guangdong, China
Shenzhen Feiming Science and Technology Co,. Ltd
Contact:+86-755-85232577
Address:#B2309, Fenglin International Center ,Jixiang Road, Longcheng street, LongGang District, Shenzhen city, Guangdong province, China.
shandong zhongke taidou chemical co.,ltd
Contact:86-531-88682301
Address:Jinan shandong Province CHina
Doi:10.1016/j.jfluchem.2016.12.005
(2017)Doi:10.1002/hlca.200590080
(2005)Doi:10.1016/j.bmcl.2005.05.035
(2005)Doi:10.1016/0022-328X(83)80050-3
(1983)Doi:10.1021/ol301545e
(2012)Doi:10.1016/j.jorganchem.2005.04.018
(2005)