Detail of "4461-41-0"

CAS Number:
4461-41-0
Name:
2-Butene,2-chloro- (7CI,8CI,9CI)
Molecular Structure:
Formula:
C4H7 Cl
Molecular Weight:
90.55
Synonyms:
2-Chloro-2-butene;3-Chloro-2-butene
Density:
0.911 g/cm³
Boiling Point:
70.6 °C at 760 mmHg
Flash Point:
-19°C
Hazard Symbols:
FXi
Risk Codes:
11-36/37/38-36/37
Safety:
Low toxicity by inhalation. Mutation data reported. A dangerous fire hazard when exposed to heat or flame. When heated to decomposition it emits toxic fumes of Cl⁻. See also CHLORINATED HYDROCARBONS, ALIPHATIC. Details
Transport Information:
UN 1993

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Substituent effects on palladium(II)-catalyzed enantioselective cyclization of a series of 2-(2-butenyl)phenols: Substituent effects on palladium(II)-catalyzed enantioselective cyclization of a series of 2-(2-butenyl)phenols. Hosokawa, Takahiro; Okuda, Chozo; Murahashi, Shunichi (Fac. Eng. Sci., Osaka Univ., Toyonaka 560, Japan). J. Org. Chem. There are some commonly used reagents like 4461-41-0 in this article., 50(8), 1282-7 (English) 1985. CODEN: JOCEAH.In this experiment, several chemicals are used like 4461-41-0 ISSN: 0022-3263. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) The enantioselective cyclization of phenols (E)-I (R = MeO, Me, H, Cl, MeCO) with (acetato)(h3-pinene)palladium in the presence of Cu(OAc)2-O2 or Me3COOH was examd. The products were benzofurans II and III. The enantioselectivity (26 to 0.1% enantiomeric excess) decreased in the above order of R, whereas no clear trend was obsd. for the reactivity. The same type of catalyst seemed to be involved in both systems. The stereochem. mode of nucleophilic addn. of the PhO group was discussed. ..

Substituent effects on palladium(II)-catalyzed enantioselective cyclization of a series of 2-(2-butenyl)phenols: Substituent effects on palladium(II)-catalyzed enantioselective cyclization of a series of 2-(2-butenyl)phenols. Hosokawa, Takahiro; Okuda, Chozo; Murahashi, Shunichi (Fac. Eng. Sci., Osaka Univ., Toyonaka 560, Japan). J. Org. Chem. There are some commonly used reagents like 4461-41-0 in this article., 50(8), 1282-7 (English) 1985. CODEN: JOCEAH.In this experiment, several chemicals are used like 4461-41-0 ISSN: 0022-3263. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) The enantioselective cyclization of phenols (E)-I (R = MeO, Me, H, Cl, MeCO) with (acetato)(h3-pinene)palladium in the presence of Cu(OAc)2-O2 or Me3COOH was examd. The products were benzofurans II and III. The enantioselectivity (26 to 0.1% enantiomeric excess) decreased in the above order of R, whereas no clear trend was obsd. for the reactivity. The same type of catalyst seemed to be involved in both systems. The stereochem. mode of nucleophilic addn. of the PhO group was discussed. ..