Thiourea and Thiourea Derivatives

Mertschenk, Bernd; Beck, Ferdinand; Bauer, Wolfgang

doi:10.1002/14356007.a26_803

Cited by 9 publications

(11 citation statements)

References 51 publications

(36 reference statements)

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“…Some thioureas are also well-known toxins . Due to nonlinear optical properties, single crystals of thiourea are being extensively employed in the electronic industry, for example, as polarization filters, electronic light shutters, electronic modulators, and as components in electro-optic and electro-acoustic devices (see ref and references therein). Thiourea and substituted thioureas are furthermore widely used as additives in various electrochemical processes .…”

Section: Introductionmentioning

confidence: 99%

“…Thiourea (SC(NH 2 ) 2 ) is the sulfur analogue of urea and one of the simplest thioamides. It has been known for more than one century and has a wide range of uses; for example, it is widely employed in the production of pharmaceuticals (sulfothiazoles, thiobarbiturates) and pesticides (see refs − and references therein) and as an additive to some plastic materials . Some thioureas are also well-known toxins .…”

Section: Introductionmentioning

confidence: 99%

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Molecular Structure of Thiourea

Puzzarini

2012

J. Phys. Chem. A

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The molecular structure of thiourea has been investigated under C(s), C(2), and C(2v) symmetry constraints. At the coupled-cluster level in conjunction with a triple-ζ basis set, only the C(2) conformer has been found to be a real minimum on the potential energy surface. Its equilibrium structure has therefore been accurately evaluated using both theoretical and experimental data. With respect to the former, high-level quantum-chemical calculations at the coupled-cluster level in conjunction with correlation-consistent basis sets ranging in size from triple- to quintuple-zeta have been carried out. Extrapolation to the complete basis-set limit as well as core-correlation effects and inclusion of full treatment of triple excitations in the cluster operator have been considered. On the basis of the vibrational ground-state rotational constants available for five isotopic species and the corresponding computed vibrational corrections, the semiexperimental equilibrium geometry of thiourea has also been determined for the first time.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Molecular Structure of Thiourea

Puzzarini

2012

J. Phys. Chem. A

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“…A common way of manufacturing disubstituted TUs is to react primary amines with carbon disulfide during loss of hydrogen sulfide (9). In the case of EBTU, an asymmetrically disubstituted TU is formed when 2 different primary amines react with carbon disulfide (Fig.…”

Section: Discussionmentioning

confidence: 99%

HPLC analysis of alkyl thioureas in an orthopaedic brace and patch testing with pure ethylbutylthiourea

2004

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Ethylbutylthiourea (EBTU) is an accelerator used in the production of chloroprene (neoprene) rubber. EBTU occurs in a mixture with diethylthiourea (DETU) and dibutylthiourea (DBTU) in the accelerator. An analytical method originally developed for analysis of zinc dithiocarbamates in rubber has been used to analyse EBTU, DETU and DBTU in a knee brace responsible for an allergic contact dermatitis in a gardener suffering from arthrosis. EBTU was isolated and gave positive reactions when tested as a pure compound. The test reaction was accompanied by positive reactions to DETU and DBTU.

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“…Generally, one of the biggest problems for using of NSAIDs is their side-effects, which is mainly due to rising leukotriene levels at inhibition of cyclooxygenase enzyme and leading arachidonic acid to the lipoxygenase pathway. [4] On the other hand, generation of free oxygen derivatives such as superoxide anions through reduction of oxygen provokes producing other activate molecules like hydrogen peroxide (H2O2) and hydroxyl radicals. Interference with arachidonic acid causes chemotactic materials production which continues inflammation.…”

Section: Introductionmentioning

confidence: 99%