SMEAH
Title: SMEAH
CAS Registry Number: 22722-98-1
CAS Name: Dihydrobis(2-methoxyethanolato-O,O¢)aluminate(1-) sodium
Additional Names: sodium bis(2-methoxyethoxy)aluminum hydride
Trademarks: Red-Al (Aldrich); Vitride (Zeeland)
Molecular Formula: C6H16AlNaO4
Molecular Weight: 202.16
Percent Composition: C 35.65%, H 7.98%, Al 13.35%, Na 11.37%, O 31.66%
Line Formula: NaAlH2(OCH2CH2OCH3)2
Literature References: Prepn: B. Casensky et al., US 3507895 (1970). Properties: J. Vit, Eastman Organic Chemical Bulletin 42(3), 1 (1970). Review of reductions by metal alkoxyaluminum hydrides: J. Málek, Org. React. 34, 1-317 (1985); idem, ibid. 36, 252-590 (1987).
Properties: Highly viscous liquid at room temp. Miscible in a great variety of inert solvents (e.g., aromatic hydrocarbons and ethers). Immiscible in paraffinic hydrocarbons. Thermally stable at 200°C; thermal decomposition starts at 205°C and is vigorous.
Use: Reducing agent.

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