CAS No.14338-32-0,Pyridinium,2-chloro-1-methyl-, iodide (1:1) Suppliers

Detail of "14338-32-0"

CAS Number:

14338-32-0

Name:

Pyridinium,2-chloro-1-methyl-, iodide (1:1)

Superlist Name:

2-Chloro-1-methylpyridinium iodide

Molecular Structure:

Formula:

C₆H₇ClIN

Molecular Weight:

255.48

Synonyms:

Pyridinium,2-chloro-1-methyl-, iodide (8CI,9CI);1-Methyl-2-chloropyridinium iodide;2-Chloro-N-methylpyridinium iodide;2-Chloropyridine methiodide;2-Chloropyridinium iodomethylate;Mukaiyamareagent;Mukaiyama's reagent;N-Methyl-2-chloropyridinium iodide;

EINECS:

238-288-7

Melting Point:

200 °C (dec.)(lit.)

Solubility:

Soluble in water

Appearance:

yellow crystalline solid

Hazard Symbols:

Risk Codes:

36/37/38

Safety:

26-24/25-36 Details

Transport Information:

UN 1759

Reference

Syntheses of macrocyclic oligoesters from 5-hydroxymethyl-2-furancarboxylic acid: Syntheses of macrocyclic oligoesters from 5-hydroxymethyl-2-furancarboxylic acid. Hirai, Hidefumi; Naito, Katsuyuki; Hamasaki, Taihei; Goto, Minoru; Koinuma, Hideomi (Fac. Eng., Univ. Tokyo, Tokyo 113, Japan). Makromol. Chem., 185(11), 2347-59 (English) 1984. CODEN: MACEAK. ISSN: 0025-116X. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) Macrocyclic oligoesters contg. furan rings were synthesized by condensation of 5-(hydroxymethyl)-2-furancarboxylic acid (I) using 2-chloro-1-methylpyridinium iodide (II) [14338-32-0] as condensing agent. Water-insol. products were sepd. by gel-permeation chromatog. and characterized by IR, NMR, mass spectra, and elemental anal. The product distribution depended remarkably on the reaction conditions. When the II-I mol ratio was 1.65 in pyridine, the cyclic trimer [86271-40-1] and the tetramer [86271-41-2] were obtained, both in >30% yield. In addn. There are some commonly used reagents like 14338-32-0 in this article. higher cyclic oligoesters, linear oligoesters, and the polyester [86274-69-3] were formed. When a large amt. of Bu3N [102-82-9] was used as a scavenger of hydrogen halides in toluene, the polyester was the main product. Condensation in hexane in place of toluene yielded the linear oligoesters as main products. A mechanism is proposed for the formation of the cyclic oligoesters. .

Oligomers from hydroxymethylfurancarboxylic acid: Oligomers from hydroxymethylfurancarboxylic acid. Hirai, Hidefumi (Fac. Eng., Univ. Tokyo, Tokyo 113, Japan). J. Macromol. 6338-41-6 is the cas registry number. This chemical is also mentioned in this article. Sci., Chem., A21(8-9), 1165-79 (English) 1984. CODEN: JMCHBD. ISSN: 0022-233X. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) Polycondensation of 5-(hydroxymethyl)-2-furancarboxylic acid (I) [6338-41-6] was studied. Oligoesters of I were prepd. by using 2-chloro-1-methylpyridinium iodide (II) [14338-32-0] as a polycondensation agent. Soln. polycondensation in pyridine at II-I molar ratio >1.2 at 60° gave selectively the macrocyclic (crown) oligoesters at total yield >91%: cyclic trimer (>33%), tetramer (>35%), pentamer (>13%) and higher oligomers (>9%). Polycondensation in n-hexane in place of pyridine with Bu3N [102-82-9] as a scavenger of hydrogen halide produced selectively the linear oligoesters from trimer to hexamer. Use of PhMe instead of n-hexane gave the polyester and the cyclic and linear oligoesters. A mechanism is proposed for the formation of the cyclic oligoesters. .

Detail of "14338-32-0"

Pyridinium,2-chloro-1-methyl-, iodide (1:1)

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CAS No.14338-32-0 2-Chloro-1-methylpyridinium iodide

CAS No.14338-32-0 2-Chloro-1-methylpyridinium iodide

CAS No.14338-32-0 2-Chloro-1-methylpyridinium iodide

CAS No.14338-32-0 2-Chloro-1-methylpyridinium iodide

CAS No.14338-32-0 2-Chloro-1-methylpyridinium iodide

CAS No.14338-32-0 2-Chloro-1-methylpyridinium iodide

CAS No.14338-32-0 2-Chloro-1-methylpyridinium iodide

CAS No.14338-32-0 2-Chloro-1-methylpyridinium iodide

CAS No.14338-32-0 2-Chloro-1-methylpyridinium iodide

CAS No.14338-32-0 2-Chloro-1-methylpyridinium iodide

CAS No.14338-32-0 2-Chloro-1-methylpyridinium iodide

CAS No.14338-32-0 2-Chloro-1-methylpyridinium iodide

CAS No.14338-32-0 2-Chloro-1-methylpyridinium iodide

CAS No.14338-32-0 2-Chloro-1-methylpyridinium iodide

CAS No.14338-32-0 2-Chloro-1-methylpyridinium iodide

CAS No.14338-32-0 2-Chloro-1-methylpyridinium iodide

Reference