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| | 3,4-Dimethoxy-3-cyclobutene-1,2-dione Basic information |
| Product Name: | 3,4-Dimethoxy-3-cyclobutene-1,2-dione | | Synonyms: | 3-Cyclobutene-1,2-dione,3,4-dimethoxy-;3,4-Dimethoxycyclobut-3-ene-1,2-dione 98%;Dimethyl squarate, 1,2-Dimethoxy-3,4-dioxocyclobut-1-ene;Dimethyl squarate 3,4-Dimethoxy-3-cyclobutene-1,2-dione;SQUARIC ACID DIMETHYL ESTER;3,4-DIMETHOXY-3-CYCLOBUTENE-1,2-DIONE;Squaric acid dimethyl ester,(Dimethyl squarate, 3,4-Dimethoxy-3-cyclobutene-1,2-dione);3,4-DIMETHOXYCYCLOBUTANE-1,2-DIONE | | CAS: | 5222-73-1 | | MF: | C6H6O4 | | MW: | 142.11 | | EINECS: | 627-380-6 | | Product Categories: | Cyclobutanes & Cyclobutenes;Simple 4-Membered Ring Compounds;Ring Systems;Aluminium foil bag/Fluoride bottle or on your request;Pyrimidines | | Mol File: | 5222-73-1.mol |  |
| | 3,4-Dimethoxy-3-cyclobutene-1,2-dione Chemical Properties |
| Melting point | 55-57 °C (lit.) | | Boiling point | 219.65°C (rough estimate) | | density | 1.3863 (rough estimate) | | refractive index | 1.5800 (estimate) | | storage temp. | 2-8°C | | solubility | DMSO, Methanol (Slightly) | | form | Solid | | color | Off-White to Pale Brown | | Water Solubility | Very soluble in water. | | InChIKey | SZBNZTGCAMLMJY-UHFFFAOYSA-N | | CAS DataBase Reference | 5222-73-1(CAS DataBase Reference) | | NIST Chemistry Reference | 3,4-Dimethoxy-3-cyclobutene-1,2-dione(5222-73-1) |
| | 3,4-Dimethoxy-3-cyclobutene-1,2-dione Usage And Synthesis |
| Chemical Properties | white crystalline powder | | Uses | 3,4-Dimethoxy-3-cyclobutene-1,2-dione (Dimethyl squarate) finds it uses in the synthesis of chiral squaramides, highly enantioselective catalyst for the Friedel-Crafts reactions of indoles, 3-(hydroxyamino)-4-methoxy-3-cyclobutene-1,2-dione, squarate derivatives of the O-SP-core antigens, methyl squarate derivative of the Ogawa O-SP-core antigen, o-quinodimethanes, benzocyclobutenes, quinones. It is employed as a starting material in the preparation of o-quinodimethanes, benzocyclobutenes, and quinones. | | General Description | 3,4-Dimethoxy-3-cyclobutene-1,2-dione (Dimethyl squarate) is a cyclobutene derivative. It reacts with hydroxylamine derivatives to afford 3-hydroxyamino-4-methoxy-3-cyclobutene-1,2-diones. |
| | 3,4-Dimethoxy-3-cyclobutene-1,2-dione Preparation Products And Raw materials |
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