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Leucothoe grayana

Kalmia latfolia, Leucothoe grayana, L. spp., Rhododendron spp. (Ericaceae) in honey from Rhododendron-feeding bees... [Pg.139]

Kalmia latifolia, Leucothoe grayana, L. spp., Rhododendron spp. (Ericaceae) in honey from Rhododendron-feeding bees Tanacetum (Chrysanthemum) cinerariifolium (pyrethrum) (Asteraceae) Leopold Ruzicka (Croatia/Switzerland, Nobel Prize, 1939, Chemistry, polymethylenes terpenes) Tanacetum (Chrysanthemum) cinerariifolium (pyrethrum) (Asteraceae)... [Pg.140]

Grayanotoxins.—Grayanotoxins XVI and XVII have been isolated from Leucothoe grayana and shown to be 6-O-acetylgrayanotoxin II and 3,6-didehydrograyanotoxin III respectively. [Pg.121]

Grayanotoxins.—A number of new grayanotoxins have been isolated from Leucothoe grayana. As with other closely related groups of diterpenoids, their structures rest on spectral evidence (mainly n.m.r.) and simple correlations. Recent additionsare G VIII (102), G IX (103), G X (104), G XI (105), G XII (106), and G XIII (107). Rhododendron japonicum also contains these skeletal types. Rhodojaponin V was assigned the structure (108) on the basis... [Pg.183]

GrayaiMtoxins. Toxic diterpenoids from leaves of Ericaceae species (Ericaceae diterpenes), e. g. Rhododendron maximum or Leucothoe grayana. G. also occur in the nectar of rhododendron flowers. Mass poisonings through contaminated honey even occurred in Antiquity. About 25 G. have been isolated. The most important are G. 1, II, and III (see table). [Pg.272]

Toxic constit. of Leucothoe grayana. Cryst. + EtOAc. Mp 218° dec. -12°. [Pg.206]

See other pages where Leucothoe grayana is mentioned: [Pg.123]    [Pg.480]    [Pg.147]    [Pg.714]    [Pg.103]    [Pg.67]    [Pg.656]    [Pg.656]    [Pg.206]    [Pg.123]    [Pg.480]    [Pg.147]    [Pg.714]    [Pg.103]    [Pg.67]    [Pg.656]    [Pg.656]    [Pg.206]   


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