Detail of "120-94-5"

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CAS Number:
120-94-5
Name:
1-Methylpyrrolidine
Molecular Structure:
Formula:
C₅H₁₁N
Molecular Weight:
85.15
Synonyms:
Methylpyrrolidine;N-Methylpyrrolidine;1-methyl-2,3,4,5-tetrahydropyrrole;Pyrrolidine, 1-methyl-;N-Methyltetrahydropyrrole;N-methylphrrolidine;N-methyl Pyrrolidine;Pesticide intermediate;
EINECS:
204-438-5
Density:
0.853 g/cm³
Melting Point:
-90 °C
Boiling Point:
82.1 °C at 760 mmHg
Flash Point:
-7 °F
Solubility:
fully miscible with water
Appearance:
clear to yellow liquid
Hazard Symbols:
F,C,N
Risk Codes:
11-22-34-51/53-35-20/22
Safety:
16-26-36/37/39-45-61-29 Details
Transport Information:
UN 2924 3/PG 2
particular:
particular

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Reference

Polyaddition of 2,7-Diethynyl-9,9-dioctylfluorene Using Regio- and Stereoselective Alkyne Dimerization Catalysts: Some chemicals with cas registry numbers like 651740-24-8 and 120-94-5 are also used. Polyaddition of 2,7-Diethynyl-9,9-dioctylfluorene Using Regio- and Stereoselective Alkyne Dimerization Catalysts. Katayama, Hiroyuki; Nakayama, Mari; Nakano, Tadashi; Wada, Chikaya; Akamatsu, Kensuke; Ozawa, Fumiyuki (Department of Applied Chemistry, Graduate School of Engineering, Osaka City University, Sumiyoshi, Osaka 558-8585, Japan). Macromolecules, 37(1), 13-17 (English) 2004 American Chemical Society. CODEN: MAMOBX. ISSN: 0024-9297. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) Section cross-reference(s): 29, 67 Three geometrical isomers of poly(9,9-dioctyl-2,7-fluorene ethynylene vinylene) [poly(1)] having (E)-, (Z)-, and gem-vinylene units were prepd. in high regio- and stereoselectivities by polyaddn. of 2,7-diethynyl-9,9-dioctylfluorene (1) catalyzed by three kinds of transition metal catalysts. Thus, a palladium catalyst (2), in situ generated from Pd(OAc)2, 1,3-dimesitylimidazolinium chloride (SIMes×HCl), and Cs2CO3, efficiently catalyzes the (E)-selective reaction, giving (E)-rich poly(1) in over 99% selectivity, whereas the reaction using a catalytic amt. of RuCl2(:C:CHPh)(PPri3)2 (3) in the presence of N-methylpyrrolidine forms (Z)-rich poly(1) in over 92% selectivity. A rhodium catalyst [RhCl(PMe3)2]2 (4) forms poly(1) bearing gem-vinylene linkages in 94% selectivity. The regio- and stereochem. courses well preserve the catalyst nature of 2-4 obsd. in dimerization reactions of arylacetylenes as prototypes of the present polyaddn. processes. All polymers exhibit emission property and high thermal stability. .

Structural effects on the rates of the ion-molecule reactions of organic heterocycles: Structural effects on the rates of the ion-molecule reactions of organic heterocycles. Scala, A. A.; Caputo, M. G.; Billings, D. (Dep. Chem., Worcester Polytech. Inst., Worcester, MA 01609, USA). J. Heterocycl. Chem. 75-21-8 and 120-94-5 are cas registry numbers. These chemicals are also mentioned in this article., 23(4), 1027-30 (English) 1986. CODEN: JHTCAD. ISSN: 0022-152X. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) Rate consts. for proton transfer reactions of seven heterocyclic amines, eight heterocyclic ethers and propylene sulfide have been measured by photoionization mass spectrometry. Rate consts. for dimerization of four sulfides have also been measured. The measured rate consts. have also been compared to the theor. av. dipole orientation (ADO) rate consts. In all cases the ADO rate consts. show only small variations with structure. In fact for the mono-heterocycles all but one of the ADO rate consts. are between 2.0 and 1.5 ′ 10-9 mL mol.-1 s-1. The obsd. rate consts. show considerable dependence on chem. structure. The amines react faster than the oxides which in turn react faster than the sulfides. N-Me substitution on pyrrolidine and piperidine lowers their rate consts. by about a factor of two while, propylene oxide reacts eighteen percent faster than ethylene oxide. Examn. of the variation in the obsd. rate consts. as a function of ring size for each group of heterocycles indicates a distinct structure-reactivity correlation. There is also a structure-reactivity dependence obsd. in the six-membered oxygen heterocycles having a second heteroatom O, NH, or S in the 4-position. The rate consts. increase with the electronegativity of the second heteroatom. .

Detail of "120-94-5"

1-Methylpyrrolidine

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Reference