Detail of "6443-91-0"

CAS Number:
6443-91-0
Name:
Ethyne, methoxy- (9CI)
Molecular Structure:
Formula:
C3H4 O
Molecular Weight:
56.07
Synonyms:
Ether,ethynyl methyl (6CI,7CI,8CI); 1-Methoxyethyne; Ethynyl methyl ether;Methoxyacetylene; Methoxyethyne
Safety:
Potentially explosive. A dangerous fire hazard when exposed to heat or flame. When heated to decomposition it emits acrid smoke and irritating fumes. See also ACETYLENE COMPOUNDS and ALKYNES. Details

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Methyleneketenes and methylenecarbenes: Methyleneketenes and methylenecarbenes. VIII. Pyrolysis of methoxyacetylene. Baxter, Gary J.; Brown, Roger F. C.; Eastwood, Frank W.; Harrington, Kevin J. (Dep. Chem., Monash Univ., Clayton, Aust.). Aust. J. Chem., 30(2), 459-63 (English) 1977. CODEN: AJCHAS. DOCUMENT TYPE: Journal CA Section: 23 (Aliphatic Compounds) Section cross-reference(s): 22, 28 Flash vacuum pyrolysis (600.degree.There are some commonly used reagents with their cas registry numbers 6443-91-0 and 62-53-3 in this article.) of 5-methoxymethylene-2,2-dimethyl-1,3-dioxane-4,6-dione gave either (methoxymethylene)ketene or decompn. products considered to be formed from methoxyacetylene. Pyrolysis of methoxyacetylene gives a complex mixt. of products, including formaldehyde, acetylene, ethylene, and ethane. .

A regiocontrolled annulation approach to highly substituted aromatic compounds: A regiocontrolled annulation approach to highly substituted aromatic compounds. Danheiser, Rick L.; Gee, Stephen K. (Dep. Chem., Massachusetts Inst. Technol., Cambridge, MA 02139, USA). J. Org. Chem., 49(9), 1672-4 (English) 1984. CODEN: JOCEAH. ISSN: 0022-3263. DOCUMENT TYPE: Journal CA Section: 25 (Benzene, Its Derivatives, and Condensed Benzenoid Compounds) Section cross-reference(s): 22, 23, 24 Thermal condensation of RCYCR1 (R, R1 = MeO, H; MeO, n-C6H13; MeO, farnesyl; MeS, Me; Me2N, n-C6H13) with a cyclobutenone (I; R2,R3,R4,R5 = H, Me, H, H; Me, Me, H, H; H, Pr, H, H; Me, Et, Me, H; Me, EtO, H, H; H, Bu, H, H; H, Me, Cl, Cl) gave phenols (II) (12 in all).In this experiment, several chemicals are used like 84451-97-8 and 6443-91-0 The process included electrocyclic cleavage of I to give a vinylketene, cycloaddn. to give a 2-vinylcyclobutenone, electrocyclic cleavage to a dienylketene, and 6-electron electrocyclic closure to the phenol. .