Results 61 to 70 of about 1,240 (187)

Thio/carbohydrazone derivatives from iso(thio)/cyanates: preparation, structure elucidation, DFT studies, antimicrobial activity and DNA interactions

open access: yes, 2023
New thio/carbohydrazone derivatives (1–10) have been synthesized from various iso(thio)/cyanates. The chemical structures of synthesized compounds were elucidated with UV–Vis, IR, 1H NMR, 13C NMR spectroscopic methods, and elemental analysis ...
Çavuş M.S., Yakan H., Başkan C., Erdoğan M., Muğlu H.   +1 more
core   +1 more source

Spectroscopic Study of Ice Analogs of Trans-Neptunian Objects Exposed to Ionizing Radiation. II. Infrared Spectra and Functional Groups

open access: yesThe Astrophysical Journal Supplement Series
The surfaces of airless trans-Neptunian objects (TNOs) are subject to continuous ionizing radiation from solar winds and Galactic cosmic rays accompanied by alteration of surface compositions.
Chaojiang Zhang   +4 more
doaj   +1 more source

Structural Diversity and Giant Birefringence in Cyanates BaCNOX (X = Cl, Br, I, and CNO) Containing Linear π‑Conjugated Units: A Combined Experimental and Theoretical Study

open access: yes, 2019
Four novel cyanates BaCNOX (X = Cl, Br, I, and CNO) containing linear π-conjugated anions were obtained by solid-state metathesis reactions for the first time. BaCNOCl crystallizes in a monoclinic space group P21/m with a = 5.5757(15) Å, b = 4.4925(10) Å,
Zheshuai Lin (1483732)   +8 more
core   +1 more source

Rearrangements of Acyl, Thioacyl, and Imidoyl (Thio)cyanates to Iso(thio)cyanates, Acyl Iso(thio)cyanates to (Thio)acyl Isocyanates, and Imidoyl Iso(thio)cyanates to (Thio)acyl Carbodiimides, RCX-YCN reversible arrow RCX-NCY reversible arrow RCY-NCX rever

open access: yes, 2013
Two types of rearrangements have been investigated computationally at the B3LYP/6-311+G(d,p) level. The activation barriers for rearrangement of acyl thiocyanates RCO-SCN to the corresponding isothiocyanates RCO-NCS are 30-31 kcal/mol in agreement with ...
Koch, Rainer, Wentrup, Curt
core   +1 more source

ACTIONS OF CYANATE [PDF]

open access: yesBritish Journal of Pharmacology and Chemotherapy, 1946
K M, BIRCH, F, SCHUTZ
openaire   +3 more sources

Synthesis of Polyols for the preparation of biodegradable polyurethanes [PDF]

open access: yes, 2004
Natural oils such as rapeseed oil do not contain the necessary chemical functionality (hydroxyl groups) required for the synthesis of the target biodegradable Polyurethane.
Yagci, Yavuz Emre
core  

[3,3]-Sigmatropic Shifts and Retro-ene Rearrangements in Cyanates, Isocyanates, Thiocyanates, and Isothiocyanates of the Form RX-YCN and RX-NCY

open access: yes, 2016
Retro-ene type [2π + 2π + 2σ] and [3,3]-sigmatropic shift reactions involving the substituent groups R in heteroatom-substituted cyanates and thiocyanates RX-YCN and the isomeric isocyanates and isothiocyanates of the type RX-NCY (X = CR2, NR′, O, or S ...
Justin J. Finnerty (2112694)   +3 more
core   +1 more source

Computational study on vapor phase coupling reaction between diiso(thio)cyanates with diamines, diols, and dithiols

open access: yes, 2017
Coupling between iso(thio) cyanates and amines, alcohols, and thiols to yield (thio) urea/urethane in the gas phase is important for the vacuum deposition processes of functional organic thin films such as molecular layer deposition or chemical vapor ...
Shong, Bonggeun   +3 more
core   +1 more source

Alkyl Cyanates. XII. On tert-Butyl Cyanate, Cyclohexyl Cyanate, Aralkyl Cyanates, and Tetramethylene Dicyanate. [PDF]

open access: yesActa Chemica Scandinavica, 1969
Kai Arne Jensen   +7 more
openaire   +1 more source

Étude et applications du réarrangement sigmatropique [3,3] d'allyl cyanates pour la synthèse de molécules d'intêret biologique

open access: yes, 2017
Nowadays, among all chemical transformations in the organic chemist’s toolbox, [3,3] sigmatropic rearrangements represent a powerful method to create carbon-carbon or even carbon-heteroatom bonds.
Henrion, Sylvain
core  

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