Results 171 to 180 of about 352,111 (240)

Transition-Metal-Catalyzed Cross-Coupling with Ketones or Aldehydes via N-Tosylhydrazones.

Journal of the American Chemical Society, 2020
Ketones and aldehydes play central roles in organic synthesis. There are numerous broadly-used reactions that are related to the car-bonyl reactivity, such as Grignard reactions, Wittig reactions, aldol reactions and so on.
Ying Xia, Jianbo Wang
semanticscholar   +1 more source

Ketones: α,β-Unsaturated Ketones

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
C. E. Foster, P. R. Mackie
openaire   +1 more source

Synthesis and properties of novel copolymers of poly(ether ketone ether ketone ketone) and poly(ether ketone ketone ether ketone ketone) containing 1,4‐naphthylene moieties

Polymer Engineering & Science, 2016
A new monomer, 1,4‐bis(4‐phenoxybenzoyl)naphthalene (BPOBN), was conveniently synthesized via a simple synthetic procedure from readily available materials. A series of novel copolymers of poly(ether ketone ether ketone ketone) and poly(ether ketone ketone ether ketone ketone) containing 1,4‐naphthylene moieties were prepared by the Friedel‐Crafts ...
Xiujun Xie, Bin Huang, Wenxiang Zhou, Mingzhong Cai   +3 more
openaire   +1 more source

ChemInform Abstract: Ketone‐Ketone Condensations of Polyhaloalkyl Phenyl Ketones.

ChemInform, 1993
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
V. YA. SOSNOVSKIKH, I. S. OVSYANNIKOV, I. A. ALEKSANDROVA   +2 more
openaire   +1 more source

ChemInform Abstract: Ketones: Dialkyl Ketones

ChemInform, 1996
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
K. E. B. PARKES, S. K. RICHARDSON
openaire   +1 more source

sp3 C-H Arylation and Alkylation Enabled by the Synergy of Triplet Excited Ketones and Nickel Catalysts.

Journal of the American Chemical Society, 2018
Triplet ketone sensitizers are of central importance within the realm of photochemical transformations. Although the radical-type character of triplet excited states of diaryl ketones suggests the viability for triggering hydrogen-atom transfer (HAT) and
Yangyang Shen, Yiting Gu, R. Martín
semanticscholar   +1 more source

Stereochemistry in Asymmetric Reduction of Bulky–Bulky Ketones by Alcohol Dehydrogenases

, 2020
Biocatalyzed asymmetric reduction of ketones is one of the most cost-effective and environmentally friendly approaches for preparing chiral alcohols.
Jieyu Zhou, Guochao Xu, Y. Ni
semanticscholar   +1 more source

Allenation of Terminal Alkynes with Aldehydes and Ketones.

Accounts of Chemical Research, 2019
So far, over 150 natural products and pharmaceuticals containing an allene moiety have been identified. During the last two decades, allenes have also been demonstrated as synthetically versatile starting materials in organic synthesis.
Xin Huang, Shengming Ma
semanticscholar   +1 more source

KETONIC AND NON-KETONIC ESTROGENS

Annals of Internal Medicine, 1937
Excerpt INTRODUCTION Active experimental work on the internal secretion of the ovary began with the demonstration of Knauer1in 1899 that transplantation of the ovary from its normal site did not pr...
W. W. WESTERFELD, EDWARD A. DOISY
openaire   +1 more source

Synthesis and properties of novel copolymers of poly(ether ketone diphenyl ketone ether ketone ketone) and poly(ether amide ether amide ether ketone ketone)

Polymer Engineering & Science, 2013
New monomers, 4,4′‐bis(4‐phenoxybenzoyl)diphenyl (BPOBDP) and N,N′‐bis(4‐phenoxybenzoyl)−4,4′‐diaminodiphenyl ether (BPBDAE), were conveniently synthesized via simple synthetic procedures from readily available materials. Novel copolymers of poly(ether ketone diphenyl ketone ether ketone ketone) (PEKDKEKK) and poly(ether amide ether amide ether ketone ...
Bin Huang, Jiangping Qian, Guixia Wang, Mingzhong Cai   +3 more
openaire   +1 more source