Results 11 to 20 of about 105,820 (326)

Chiral amido-oxazoline functionalized MCM-41: A sustainable heterogeneous catalyst for enantioselective Kharasch–Sosnovsky and Henry reactions [PDF]

open access: yesHeliyon
In this study, a series of chiral amido-oxazoline ligands was synthesized with a primary focus on immobilizing the most effective ligands on MCM-41 mesoporous material.
Niloofar Tavakoli   +5 more
doaj   +2 more sources

Amido resistente em diversas fontes não convencionais de amido

open access: yesMillenium, 2016
Amido resistente (AR) é aquele que não é digerido no intestino delgado, conduzindo a efeitos benéficos para a saúde, tal como a fibra dietética faz. Procedeu-se à determinação do AR em farinhas e amidos extraídos de duas variedades de castanha (Castanea ...
C. Fontinha, Paula Correia
doaj   +2 more sources

O ensino de Química Orgânica: Identificação de amido em alimentos

open access: yesDiversitas Journal, 2023
Este artigo destaca a importância do ensino de Química Orgânica para detectar e entender o amido presente nos alimentos. O amido é um carboidrato complexo essencial na nutrição humana. O ensino nesse contexto permite aos alunos compreender a estrutura e
Michele Barbosa de Oliveira   +1 more
doaj   +1 more source

Whether-exclamatives: a verum strategy

open access: yesZeitschrift für Sprachwissenschaft, 2023
Verum has been attested in declaratives, interrogatives, and imperatives. In this paper, we show that whether-exclamatives, a subtype of exclamatives, also qualify as a verum strategy, thus showing that the phenomenon ranges across all sentence moods ...
Amido Sara, Buchczyk Sebastian
doaj   +1 more source

An Isolable Mononuclear Palladium(I) Amido Complex.

open access: yesJournal of the American Chemical Society, 2021
Mononuclear Pd(I) species are putative intermediates in Pd-catalyzed reactions, but our knowledge about them is limited due to difficulties in accessing them.
Jian Liu   +10 more
semanticscholar   +1 more source

Bis(amido)diazadiarsetidinide and Amido(imino)arsenide Complexes of Divalent Metals [PDF]

open access: yesEuropean Journal of Inorganic Chemistry, 2021
AbstractThe Mg and Ca complexes of the tert‐butyl substituted bis(amido)diazadiarsetidinides [{(tBuNAs)2(tBuN)2}M(thf)2] (M=Mg (1), Ca (6)) were prepared by addition of nBu‐secBuMg or [{(p‐tBu)(C6H4)CH2}2Ca] to [(tBuNAs)2(tBuNH)2] (Ia). Upon evaporation of coordinating THF, 1 is selectively converted to the amido(imino)arsenide complex [Mg{As(NtBu)2}2]
Christian Ritter, Carsten von Hänisch
openaire   +2 more sources

Acyclic Amido‐Containing Silanechalcogenones [PDF]

open access: yesEuropean Journal of Inorganic Chemistry, 2015
AbstractInvited for the cover of this issue is the group of Cheuk‐Wai So at the Nanyang Technological University, Singapore. The cover image shows the isolation of the first stable four‐coordinate silanechalcogenones comprising an acyclic amido substituent by a straightforward oxidation of the amidinato silicon(II) bis(trimethylsilyl)amide with ...
Chan, Yuk-Chi   +3 more
openaire   +2 more sources

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