text.skipToContent text.skipToNavigation

Maximum quantity allowed is 999

Please select the quantity

CAS RN: 147-85-3 | Product Number: R0313

L-Proline (HPMC encapsulated)


New
Purity:
Synonyms:
Product Documents:
10EACH
€60.00
Contact Us 19  

* Stock available in Belgium: Shipment on the same day
* Stock available in Japan: Please check the Shipping Simulation for estimated shipments. (excludes regulated items and dry ice shipments)


Supplemental Product Information:

Contents (per one capsule)

  • L-Proline ca. 0.500 mmol

Uses of Reagent

  • Applicable to copper-catalyzed reactions due to a ligand encapsulated in HPMC capsules

Soluble Solvents

  • Water, DMSO, DMF, 1,4-Dioxane (50°C), THF/Water mixture, 1,2-Dimethoxyethane/Water mixture

Related Product

  • P0481 L-Proline

Product Number R0313
Molecular Formula / Molecular Weight C__5H__9NO__2 = 115.13 
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 147-85-3
Specifications
Appearance White to Almost white capsule
Functionality test (conversion ratio) min.90.0 %
Properties (reference)
GHS
Related Laws:
Transport Information:
HS Number 3822190090
Application
TCI Practical Example: Goldberg Amination Using Encapsulated L-Proline and copper(I) iodide

TCI Practical Example: Goldberg Amination Using Encapsulated L-Proline and copper(I) iodide

Used Chemicals

Procedure

Copper(I) iodide (HPMC encapsulated) (one capsule) and L-proline (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 = 1:10 - 1:5) to afford N-(2-pyridyl)indole (100 mg, 62% yield) as a pale-yellow oil.

Experimenter’s Comments

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 Fig. 1 and L-proline (ca. 500 μmol) and copper(I) iodide (ca. 800 μmol) are encapsulated in each capsule, respectively.

Appearance of capsule
Fig. 1. Appearance of capsule
The capsule dissolves in water or polar solvent as shown in Fig. 2.
Appearance of capsule
Fig. 2. Capsule disintegrating
(left) Immediately after the addition of the capsule,
(right) 15 minutes after the addition of the capsule.

Analytical Data

N-(2-Pyridyl)indole

1H NMR (400 MHz, CDCl3); δ 8.21 (d, J = 8.0 Hz, 1H), 7.85-7.81 (m, 1H), 7.37 (d, J = 4.0 Hz, 1H), 7.67 (d, J = 8.0 Hz, 1H), 7.51 (d, J = 8.0 Hz, 1H), 7.30(t, J = 8.0 Hz, 1H), 7.23-7.16 (m, 2H).

Lead Reference

Other Reference


Product Documents (Note: Some products will not have analytical charts available.)
Safety Data Sheet (SDS)
Please select Language.

The requested SDS is not available.

Please Contact Us for more information.

Specifications
C of A & Other Certificates
Please enter Lot Number Incorrect Lot Number. Please input only the 4-5 alphanumeric characters before the hyphen.

The product with the lot number searched for has been discontinued and related documentation is no longer provided. Please try a different lot number for this product.

Sample C of A
This is a sample C of A and may not represent a recently manufactured lot of the product.

A sample C of A for this product is not available at this time.

Analytical Charts
Please enter Lot Number Incorrect Lot Number. Please input only the 4-5 alphanumeric characters before the hyphen.

The requested analytical chart is not available. Sorry for the inconvenience.

The product with the lot number searched for has been discontinued and related documentation is no longer provided. Please try a different lot number for this product.

Other Documents

Session Status
Your session will timeout in 10 minutes. You will be redirected to the HOME page after session timeout. Please click the button to continue session from the same page. minute. You will be redirected to the HOME page after session timeout. Please click the button to continue session from the same page.

Your session has timed out. You will be redirected to the HOME page.