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CAS RN: 7681-65-4 | Product Number: R0314
CuI (HPMC encapsulated)
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Purity:
Synonyms:
- Copper(I) Iodide (HPMC encapsulated)
- Cuprous Iodide (HPMC encapsulated)
Product Documents:
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Supplemental Product Information:
Contents (per one capsule)
- CuI ca. 0.800 mmol
Uses of Reagent
- Applicable to copper-catalyzed reactions due to a copper catalyst encapsulated in HPMC capsules
Soluble Solvents
- Water, DMSO, DMF, 1,4-Dioxane (50°C), THF/Water mixture, 1,2-Dimethoxyethane/Water mixture
Related Product
- C2163 Copper(I) Iodide
| Product Number | R0314 |
| Molecular Formula / Molecular Weight | CuI = 190.45 |
| Physical State (20 deg.C) | Solid |
Storage Temperature 
|
Room Temperature (Recommended in a cool and dark place, <15°C) |
| Store Under Inert Gas | Store under inert gas |
| Condition to Avoid | Hygroscopic |
| CAS RN | 7681-65-4 |
Specifications
| Appearance | White to Almost white capsule |
| Functionality test (conversion ratio) | min.90.0 % |
Properties (reference)
GHS
| Pictogram |
|
| Signal Word | Danger |
| Hazard Statements | H302 : Harmful if swallowed. H315 : Causes skin irritation. H318 : Causes serious eye damage. H373 : May cause damage to organs through prolonged or repeated exposure. H317 : May cause an allergic skin reaction. H335 : May cause respiratory irritation. H400 : Very toxic to aquatic life. H411 : Toxic to aquatic life with long lasting effects. |
| Precautionary Statements | P501 : Dispose of contents/ container to an approved waste disposal plant. P273 : Avoid release to the environment. P272 : Contaminated work clothing should not be allowed out of the workplace. P260 : Do not breathe dust. P270 : Do not eat, drink or smoke when using this product. P271 : Use only outdoors or in a well-ventilated area. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ eye protection/ face protection. P302 + P352 : IF ON SKIN: Wash with plenty of water. P391 : Collect spillage. P314 : Get medical advice/ attention if you feel unwell. P362 + P364 : Take off contaminated clothing and wash it before reuse. P333 + P313 : If skin irritation or rash occurs: Get medical advice/ attention. P301 + P312 + P330 : IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. Rinse mouth. P304 + P340 + P312 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/doctor if you feel unwell. P305 + P351 + P338 + P310 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor. P403 + P233 : Store in a well-ventilated place. Keep container tightly closed. P405 : Store locked up. |
Related Laws:
Transport Information:
| UN Number | UN3077 |
| Class | 9 |
| Packing Group | III |
| H.S.code* | 3822.19-000 |
Application
TCI Practical Example: Goldberg Amination Using Capsule Reagents
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Used Chemicals
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Procedure
- Copper(I) iodide (HPMC encapsulated) (one capsule) and 1,10-phenanthroline (HPMC encapsulated) (one capsule) were added to a solution of indole (93.7 mg, 800 µmol), 2-bromopyridine (164 mg, 1.04 mmol, 1.3 eq.) and cesium carbonate (521 mg, 1.60 mmol, 2.0 eq.) in DMSO (2.5 mL) at r.t. and the reaction mixture was stirred at 150 °C for 2 hours. After cooling to r.t., the solution was diluted with ethyl acetate (15 mL) and sat. Na2SO4 aq. (15 mL), and filtered through Celite pad and the filtrate was extracted with ethyl acetate (15 mL x 2). The organic layer was washed with 2 mol/L HCl (15 mL) and sat. NaHCO3 aq. (15 mL), dried over sodium sulfate and concentrated under reduced pressure. The crude product was purified by silica gel column chromatography (ethyl acetate:hexane = 10:1 - 5:1) to afford N-(2-pyridyl)indole (130 mg, 84% yield) as a pale-yellow oil.
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Experimenter’s Comments
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The reaction mixture was monitored by UPLC.
The material of the capsule is water-soluble HPMC (hydroxypropyl methylcellulose).
The capsule has the shape shown in Figure 1 and 1,10-phenanthroline (ca. 200 μmol) and copper(I) iodide (ca. 800 μmol) are encapsulated in each capsule, respectively.
Figure 1. Appearance of capsule
The capsules dissolves in water or polar solvents as shown in Figure 2.
Figure 2. Capsule disintegrating
(left) Just after the capsule is put in, (right) 15 minutes after the capsule is put in
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Analytical Data
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N-(2-Pyridyl)-indole
1H NMR (400 MHz, CDCl3); δ 8.21 (d, 1H, J = 8.0 Hz), 7.85-7.81 (m, 1H), 7.37 (d, 1H, J = 4.0 Hz), 7.67 (d, 1H, J = 8.0 Hz), 7.51 (d, 1H, J = 8.0 Hz), 7.30(t, 1H, J = 8.0 Hz), 7.23-7.16 (m, 2H).
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Lead Reference
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- Reagent and Catalyst Capsules: A Chemical Delivery System for Reaction Screening and Parallel Synthesis
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Other References
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- Transition-Metal-Free O-, S-, and N-Arylation of Alcohols, Thiols, Amides, Amines, and Related Heterocycles
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