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ChemicalBook CAS DataBase List N-Iodosuccinimide
516-12-1

N-Iodosuccinimide synthesis

4synthesis methods
To a solution of 39.2g of succinimide in 1200ml of boiling water was added 51.0g of freshly precipitated silver oxide, the mixture was filtered and the silver salt was allowed to crystallize. Filtration and washing with cold water furnished 45.0g of the silver salt of succinimide suitable for the iodination step.
The finely powdered salt (49.5g) was added in portions with stirring to a solution of 50.8g of iodine in 300ml of acetone, the temperature being maintained at 5-10°C. After decolorization (30 min.), the silver iodide was filtered, the solvent was removed under reduced pressure at room temperature and the residue was washed with ether, yielding 43g of N-iodosuccinimide with mp 189-191°C. An analytical sample (85% recovery) was obtained by dissolving in the minimum quantity of hot dioxane and precipitating with carbon tetrachloride; colorless needles, mp 200-201°C.
Ref: JACS 75, 3493 (1953)
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Yield:516-12-1 99%

Reaction Conditions:

with [bis(acetoxy)iodo]benzene;iodine in benzene at 20; for 15 h;Darkness;Concentration;Solvent;Time;

Steps:

4 Preparation of N-iodosuccinimide in benzene

[00172] A mixture of succinimide (1.0 g, 10.1 mmol), PhI(OAc)2 (1.95 g, 6.06 mmol), I2 (1.67 g, 6.57 mmol) and benzene (20 mL) was stirred for 15 h at rt and for 1 h at 0 to 5 °C. The precipitated solid was filtered, washed on the filter with cold benzene and dried in vacuo to give 2.2 g (99%) of N-iodosuccinimide.

References:

WO2015/68159,2015,A2 Location in patent:Paragraph 00171-00172

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