Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Cyclotriphosphazen-2-spiro-3′-cyclodiphosphadiazan und Cyclotriphosphazen-2-spiro-3′-cyclodiphosphadiazan-6′-spiro-2″-cyclotriphosphazen – Spiroverbindungen aus Cyclotriphosphazen und Cyclodiphosphadiazanen / Cyclotriphosphazene-2-spiro-3′-cyclodiphosphad
View through CrossRef
Hexachlorocyclotriphosphazene (Cl2P=N)3 reacts with hydrazine or dihydrazidophosphoric acid O-phenyl-ester in THF in the presence of triethylamine to give the spirocyclic title compounds. Constitutions are confirmed by MS, NMR and IR spectra. {1H}31P NMR spectra at 36.23 MHz are of higher order – ABCD and A2BB′A′2 – and can be simulated with the appropriate shifts and coupling constants.
Walter de Gruyter GmbH
Title: Cyclotriphosphazen-2-spiro-3′-cyclodiphosphadiazan und Cyclotriphosphazen-2-spiro-3′-cyclodiphosphadiazan-6′-spiro-2″-cyclotriphosphazen – Spiroverbindungen aus Cyclotriphosphazen und Cyclodiphosphadiazanen / Cyclotriphosphazene-2-spiro-3′-cyclodiphosphad
Description:
Hexachlorocyclotriphosphazene (Cl2P=N)3 reacts with hydrazine or dihydrazidophosphoric acid O-phenyl-ester in THF in the presence of triethylamine to give the spirocyclic title compounds.
Constitutions are confirmed by MS, NMR and IR spectra.
{1H}31P NMR spectra at 36.
23 MHz are of higher order – ABCD and A2BB′A′2 – and can be simulated with the appropriate shifts and coupling constants.
Related Results
Oncocytic/Hürthle cell lesions have the same implied risk of neoplasm/malignancy as their follicular counterparts
Oncocytic/Hürthle cell lesions have the same implied risk of neoplasm/malignancy as their follicular counterparts
AbstractIntroductionThere are conflicting results on whether the presence of oncocytes modifies the risk of neoplasm (RON) or malignancy (ROM) for thyroid fine‐needle aspirates (FN...
Oligoetherols and polyurethane foams based on cyclotriphosphazene of reduced flammability
Oligoetherols and polyurethane foams based on cyclotriphosphazene of reduced flammability
AbstractNew oligoetherols with based on cyclotriphosphazene ring were synthesized by functionalization of hexachlorocyclotriphosphazene with glycidol followed by reaction with ethy...
Cercetările arheologice preventive de la Timişoara-Freidorf (raport preliminar) / Die präventive archäologische Forschungen von Temes[ch]war – Freidorf, des Jahres 2006
Cercetările arheologice preventive de la Timişoara-Freidorf (raport preliminar) / Die präventive archäologische Forschungen von Temes[ch]war – Freidorf, des Jahres 2006
Die präventive archäologische Forschungen von Temeswar – Freidorf, des Jahres 2006, waren von die Bauerrichtungen einer Halle für die Firma „ Barum – Technik“ determiniert. Das Zie...
Studies on Spiro Azetidinones and Spiro Thiazolidinones, III Synthesis of Some New Spiro Azetidinones, Spiro Thiazolidinones, Bis-azetidinones and Bis-thiazolidinones
Studies on Spiro Azetidinones and Spiro Thiazolidinones, III Synthesis of Some New Spiro Azetidinones, Spiro Thiazolidinones, Bis-azetidinones and Bis-thiazolidinones
Abstract
Cyclocondensation reaction of 3-isatylideneoxime (1a), -hydrazone (1b), -phenyl-hydrazone (1c), semicarbazone (1d) and -thiosemicarbazone (1e) with chloroa...
Preparation and characterization of novel poly[cyclotriphosphazene‐co‐(4,4′‐sulfonyldiphenol)] nanofiber matrices
Preparation and characterization of novel poly[cyclotriphosphazene‐co‐(4,4′‐sulfonyldiphenol)] nanofiber matrices
AbstractNovel poly[cyclotriphosphazene‐co‐(4,4′‐sulfonyldiphenol)] nanofiber matrices were synthesized via a facile one‐pot polymerization. The fibers are 20–50 nm in diameter and ...
Synthesis of New 2-(1,3-Dithianyl)phenols and Hexakis-[p-(1,3-dithian-2-yl)phenoxy]cyclotriphosphazene
Synthesis of New 2-(1,3-Dithianyl)phenols and Hexakis-[p-(1,3-dithian-2-yl)phenoxy]cyclotriphosphazene
2-Chloro-1,3-dithiane was obtained by the chlorination of 1,3-dithiane with N-chlorosuccinimide. Reactions of 2-chloro-1,3-dithiane with various substituted phenols lead to 2-(1,3-...
Thyroid Atypia of Undetermined Significance or Follicular Lesion of Undetermined Significance: An Indispensable Bethesda 2010 Diagnostic Category or Waste Garbage?
Thyroid Atypia of Undetermined Significance or Follicular Lesion of Undetermined Significance: An Indispensable Bethesda 2010 Diagnostic Category or Waste Garbage?
Objective: The Bethesda System for Reporting Thyroid Cytopathology (BSRTC) was introduced in thyroid cytology in 2007 and is now generally accepted. BSRTC categories include a morp...
Chemie der 2,3‐Dihydro‐2,3‐diminofurane
Chemie der 2,3‐Dihydro‐2,3‐diminofurane
AbstractDie Titelverbindungen 6 gehen mit Nucleophilen Kondensationsreaktionen in der 3‐Stellung ein, oder reagieren unter Ringöffnung und ‐umlagerung, wobei 2,3‐Furandione 2, 2,3‐...