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Diterpenes from Fleischmannia hymenophylla and Brickellia laciniata
(1989)
The aerial parts of Fleischmannia hymenolepis gave in addition to phytol and sesamin a new derivative of beyerene named hymenophylloide. The aerial parts of Brickellia laciniata afforded several new labdane derivatives and ...
Germacranolides and other constituents from ageratzna species
(1988)
The aerial parts of Ageratina anisochroma gave several thymol derivatives including five new ones, a hydroxypiperitol glucoside, some substituted benzyl benzoates and several germacranolides related to provincialin. From ...
Dopant-Free Hole-Transport Materials with Germanium Compounds Bearing Pseudohalide and Chalcogenide Moieties for Perovskite Solar Cells
(2020-10-04)
Hole-transport materials (HTMs) are key electronic components for the functioning of perovskite solar cells (PSCs) as they extract the photogenerated holes from the perovskite to be transported subsequently to the back ...
Photochemische Umlagerung von 1-Acyloxy-1-alkoxy-λ5-phosphorin-Derivaten
Photochemical rearrangements of 1-acyloxy-1-alkoxy-λ5-phosphorine derivatives
(1976)
Während bei 1-Akoxy-1-benzoyloxy-2,4,6-triphenyl-λ5-phosphorin-Derivaten 1a-e photochemisch in Ausbeuten von 46 - 96% dieselben 1-Alkoxy-6c-benzoyl-1r-oxo-2,4,6-triphenyl-1λ5-phospha-2,4-cyclohexadiene 2a-e isoliert werden, ...
Constituents of Fevillea cordifolia: New Norcucurbitacin and Cucurbitacin Glycosides
(1993)
The seeds of Fevillea cordifolta have yielded 11 new fevicordin-type 29- norcucurbitacins 3-13, and two new cucurbitacin glycosides 14 and 15, which were isolated along with previous reported fevicordin A [2] and its ...
Chemical and Behavioral Ecology of Palm Weevils (Curculionidae: Rhynchophorinae)
(1996)
Palm weevils in the subfamily Rhynchophorinae (Curculionidae) (Rhynchophorus spp., Dynamis borassi, Metamasius hemipterus, Rhabdoscelus obscurus, and Paramasius distortus) use male-produced aggregation pheromones for ...
Fusarium: more than a node or a foot-shaped basal cell
(2021)
Recent publications have argued that there are potentially serious consequences for researchers in recognising distinct genera in the terminal fusarioid clade of the family Nectriaceae. Thus, an alternate hypothesis, namely ...
Estudio de propóleos a base de nemorosona: Composición química y Estabilidad
(2022)
Los propóleos poseen un alto valor etnofarmacológico, conocido por la humanidad desde hace milenios. Su variabilidad química hace difícil tanto su estudio cómo su caracterización. En este trabajo se caracterizó el perfil ...
Espectro de Masas de Algunos Derivados del 9,10-Dihidrofenantreno
(1978)
Discussion of the mechanisms of mass spectra fragmentation of some derivatives of 9,10-dihidrofenantreno