thiourea वाक्य
उदाहरण वाक्य
मोबाइल
- Chiral thiourea and bis ( thiourea ) catalysts can be effective in DABCO-catalyzed MBH and aza-MBH reactions.
- A more convenient route to 2-mercaptopyridine is the reaction of 2-chloropyridine and thiourea in ethanol and aqueous ammonia.
- The toxicity was proposed to arise from the thiourea group, and similar guanidine analogues were investigated until the ultimate discovery of cimetidine.
- Unlike urea and thiourea, which have both been researched extensively, mainly qualitative and comparative information on selenourea s tautomerization is available.
- While simple thiourea requires a nucleophilic catalyst in conjunction, bifunctional catalysts such as phosphine-thioureas can be used alone for asymmetric MBH reactions.
- The equilibrium mixtures at 150 �C and 180 �C contain 30.3 % and 25.3 % ( by weight ) thiourea, respectively.
- A goitrogenic effect ( enlargement of the thyroid gland ) has been reported for chronic exposure, reflecting the ability of thiourea to interfere with iodide uptake.
- Most preparations of episulfides utilize a two-step method, converting an olefin to an epoxide before its conversion to the episulfide using either thiocyanate or thiourea.
- Jacobsen's thiourea catalyst performs an enantioselective aza-MBH reaction, for example ( 25-49 % yield, 87-99 % ee ).
- In going from urea to thiourea to selenourea the double bond is more delocalized and longer, while the C-N ? bond is stronger and shorter.
- "' Ergothioneine "'is a naturally occurring amino acid and is a thiourea derivative of histidine, containing a sulfur atom on the imidazole ring.
- Thiourea has been shown to exist predominantly in its thione form at 42 �C in dilute methanol, with the thionol tautomer almost non-existent at neutral pH.
- Their isolation from a complex mixture of hydrocarbons is possible due to their high melting point and the ability to distill with water vapor and form stable adducts with thiourea.
- A 10 % solution of fluoroboric acid, tin fluoroborate and thiourea is used to electroless tin plate the copper traces of printed circuit boards for protection and easier soldering.
- Sulfur-containing compounds, including ammonium thiosulfate ( a popular inhibitor ) are found to operate by producing volatile compounds with strong inhibitory effects such as carbon disulfide and thiourea.
- Evidence supports a genetic link between the Kell blood group ( on chromosome 7 q33 ) and the ability to taste phenylthiocarbamide, or PTC, a bitter-tasting thiourea compound.
- Thiourea dioxide is not a dioxide, but instead is a derivative of a sulfinic acid ( RS ( O ) ( OH ), hence the alternative name formamidine sulfinic acid.
- "' Thiocarbanilide "'is an organic chemical compound with the formula ( C 6 H 5 NH ) 2 CS . This white solid is a derivative of thiourea.
- Ethylene thiourea can be used as a biomarker of exposure to ethylenebisdithiocarbamates ( EBDTCs ), which are frequently employed as fungicides in agriculture, mainly on fruits, vegetables and ornamental plants.
- It was proposed that the toxicity arose from the thiourea group, and similar guanidine analogues were investigated until the discovery of cimetidine, which would become the first clinically successful H 2 antagonist.
thiourea sentences in Hindi. What are the example sentences for thiourea? thiourea English meaning, translation, pronunciation, synonyms and example sentences are provided by Hindlish.com.