Results 311 to 320 of about 385,761 (370)

Hydroxymethyl‐phosphine, Hydroxymethyl‐phosphoniumsalze und Chlormethyl‐phosphoniumsalze

Justus Liebigs Annalen der Chemie, 1962
AbstractHydroxymethylphosphine können durch Addition von Formaldehyd an primäre und sekundäre Phosphine oder durch alkalische Spaltung von Hydroxymethyl‐phosphoniumsalzen2) gewonnen werden. Beim Erhitzen unter vermindertem Druck destillieren sie teilweise unzersetzt, teilweise tritt Rückspaltung in die Komponenten oder Buckler‐Trippett‐Umlagerung zu ...
Heinrich Hellmann, Jörg Bader, Helmut Birkner, Otto Schumacher   +3 more
openaire   +1 more source

2‐(Hydroxymethyl)androstene Derivatives

Liebigs Annalen der Chemie, 1987
Abstract3‐Hydroxy‐2‐hydroxymethyl‐ (2 and 3) and 3‐hydroxymethyl‐3‐oxoandrostenes 4 were prepared from 2‐hydroxymethylene derivatives 1. The configurations of the chiral centers were determined on the basis of chiroptical, spectroscopical, and X‐ray analytical data. Furthermore, elimination reaction products (5, 6) were identified.
Vincze Irén, Somlai Csaba, Schneider Gyula, Dombi György, Kálmán Alajos   +4 more
openaire   +1 more source

1,8-Bis(hydroxymethyl)anthracene

Acta Crystallographica Section C Crystal Structure Communications, 1997
Anthracene-1,8-dimethanol, C16H14O2, crystallized in the centrosymmetric space group P21/n. The anthracene core is nearly planar and shows good agreement with the anthracene core of anthracene-1,8-dicarboxylic acid. The geometric disposition of the hydroxymethyl groups and the values of the hydrogen-bond parameters are strikingly similar to those in ...
W D, Aumiller, R E, Gerkin
openaire   +2 more sources

Synthesis of biomass-derived feedstocks for the polymers and fuels industries from 5-(hydroxymethyl)furfural (HMF) and acetone

Green Chemistry, 2019
We show a process for efficient conversion of biomass derived 5-(hydroxymethyl) furfural by aldol condensation with acetone to high molecular weight compounds for applications in polymer, pigment, and petroleum industries.
Hochan Chang, A. H. Motagamwala, G. Huber, J. Dumesic   +3 more
semanticscholar   +1 more source

Catalytic selective hydrogenation and rearrangement of 5-hydroxymethylfurfural to 3-hydroxymethyl-cyclopentone over a bimetallic nickel–copper catalyst in water

Green Chemistry, 2019
The selective hydrogenation and rearrangement of 5-hydroxymethylfurfural (5-HMF) to 3-hydroxymethyl-cyclopentone (HCPN) were studied over a MOF-derived bimetallic nickel–copper catalyst in water.
Shujing Zhang, Hong Ma, Yuxia Sun, Yang Luo, Xin Liu, Meiyun Zhang, Jin Gao, Jie Xu   +7 more
semanticscholar   +1 more source

Biobased Plasticizers from Carbohydrate-Derived 2,5-Bis(hydroxymethyl)furan

Industrial & Engineering Chemistry Research, 2019
As potential replacements for phthalate plasticizers, a series of esters of biobased 2,5-bis(hydroxymethyl)furan has been synthesized and fully characterized using spectroscopic and thermal methods...
B. Howell, Simone Lazar
semanticscholar   +1 more source

N-(hydroxymethyl) melamines

General Pharmacology: The Vascular System, 1997
1. The N-(hydroxymethyl) melamines are analogs of the antitumor agent hexamethylmelamine (HMM) which do not require bioactivation to exert their antitumor effects. 2. Trimelamol (N2,N4,N6-trihydroxymethyl-N2,N4,N6-trimethylmelamine; TM) was developed as a water-soluble antitumor agent for intravenous administration. 3.
openaire   +3 more sources

Hydroxymethylated DNA Immunoprecipitation (hmeDIP)

2013
5-hydroxymethylcytosine (5hmC) was recently identified as an abundant epigenetic mark in mammals. Subsequent research has implicated 5hmC in normal mammalian development and disease pathogenesis in humans. Many of the techniques commonly used to assay for canonical 5-methylcytosine (5mC) cannot distinguish between 5hmC and 5mC.
Colm E, Nestor, Richard R, Meehan
openaire   +2 more sources

Trialkylsilylmethyltris(hydroxymethyl)methanes

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1989
Trialkylsilylmethyltris (hydroxymethyl) methanes were synthesized by the reaction of β-trialkylsilylpropanals with formaldehyde.
A. K. Ustinov, R. G. Gafurov, I. V. Martynov   +2 more
openaire   +1 more source

α.α‐Bis‐hydroxymethyl‐butyraldehyd und α.α‐Bis‐hydroxymethyl‐buttersäure

Chemische Berichte, 1962
AbstractDie α.α‐Bis‐hydroxymethyl‐alkanale bilden ohne H⊕‐Ionenkatalyse spontan die durch Wasserstoffbrückenbindungen stabilisierten Paraldehyde. Ihre Bildungstendenz nimmt mit steigendem Molekulargewicht ab. Bei der Oxydation zu den Bis‐hydroxymethyl‐carbonsäuren stört die Retro‐Aldolisierung. Überraschenderweise gelang es, Buttersäure mit Formaldehyd
Otto Neunhoeffer, Hans Neunhoeffer
openaire   +1 more source