Results 341 to 350 of about 322,084 (409)

Amides IX: Acylation of amides and amines

Recueil des Travaux Chimiques des Pays-Bas, 1952
AbstractFurther proofs are adduced in favour of the theory of add catalyzed acylation of amides to diacylamines. Synthetic examples are given partly as improvements of older methods, partly as illustrations of the theory. The preparation of the following new compounds is described: N‐isobutyrylbenzamide, N‐acetyl‐n‐butyramide, N‐methyldipropionimide ...
P. Dunn, E. A. Parkes, J. B. Polya
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Amid the dust

2020
“Amidst the Dust” pays homage to the author’s personal experience conducting research for her MA thesis on Italian-American writer John Fante. Her two months spent in Los Angeles—the city where Fante set many of his literary works—were crucial to developing a richer understanding of Fante’s perception of his identity as a son of Italian immigrants. The
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Amides

ChemInform, 2006
AbstractFor Abstract see ChemInform Abstract in Full Text.
Y. R. Mahajan, S. M. Weinreb
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ChemInform Abstract: STUDIES OF THIO AMIDES AND AMIDES‐ CONVERISON OF THIO AMIDES INTO AMIDES BY TRIMETHYLOXONIUM FLUOROBORATE

Chemischer Informationsdienst, 1977
AbstractKindler‐Reaktion der Säurechloride (I) mit den Aminen (II) ergibt die Amide (IIIa)‐alle), von denen (IIIa) bzw. (IIIb) beim Erhitzen mit P2S5 in die Thioamide (IVa) bzw. (IVb) übergehen.
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Acyl and Decarbonylative Suzuki Coupling of N-Acetyl Amides: Electronic Tuning of Twisted, Acyclic Amides in Catalytic Carbon–Nitrogen Bond Cleavage

ACS Catalysis, 2018
We report the Pd-catalyzed acyl and the Ni-catalyzed biaryl Suzuki–Miyaura cross-coupling of N-acetyl-amides with arylboronic acids by selective N–C(O) cleavage.
Chengwei Liu, Guangchen Li, Shicheng Shi, Guangrong Meng, R. Lalancette, R. Szostak, M. Szostak   +6 more
semanticscholar   +1 more source

Transition-Metal-Free Esterification of Amides via Selective N-C Cleavage under Mild Conditions.

Organic Letters, 2018
A general, transition-metal-free, and operationally simple method for esterification of amides by a highly selective cleavage of N-C(O) bonds under exceedingly mild conditions is reported.
Guangchen Li, P. Lei, M. Szostak
semanticscholar   +1 more source

Primary, Secondary, and Tertiary γ-C(sp3)-H Vinylation of Amides via Organic Photoredox-Catalyzed Hydrogen Atom Transfer.

Organic Letters, 2018
An efficient strategy for primary, secondary and tertiary aliphatic γ-C(sp3)-H vinylation of amides with alkenylboronic acids is reported. These reactions are catalyzed by visible-light organic photoredox agents.
Hui Chen, Liangliang Guo, Shouyun Yu
semanticscholar   +1 more source

Amides

2022
This chapter discusses enamines. It explains the process of achieving enamine through regaining neutrality by losing a proton adjacent to the iminium moiety. Additionally, these compounds rarely serve as nucleophiles or bases on nitrogen. The chapter discusses the formation of enamines from amine and aldehyde or ketone.
Patrick D. Bailey, Keith M. Morgan
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Amid the Wait

JAMA
In this narrative medicine essay, a pediatric palliative care physician undergoing in vitro fertilization extends her compassionate solidarity to female physicians who, like her, are anxious to start their families.
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Amides II. Acylation of amides to diacylimines

Recueil des Travaux Chimiques des Pays-Bas, 1948
AbstractThree acylating mechanisms are involved in the reaction between amides and anhydrides. In the aliphatic series all mechanisms are governed by the inductive effects operating in the reactants.Amides act as acids towards anhydrides.Diacylimines and the corresponding anhydrides acylate alcohols by the same mechanism.A new compound ...
J. B. Polya, T. M. Spotswood
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