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4-(2,2-Diethoxy-ethoxy)-but-1-ene; CAS No.: 1343915-25-2; 4-(2,2-Diethoxy-ethoxy)-but-1-ene. PROPERTIES: This compound is a 4-(2,2-Diethoxy-ethoxy)-but-1-ene appearing as colorless liquid. Its molecular weight is approximately 206.25 g/mol. It has characteristic mild ether-like odor. The compound is moderately soluble in common organic solvents like ether and chloroform. It shows good stability under normal conditions but may undergo polymerization upon exposure to heat. Store in tightly sealed containers below 30 C. Protect from heat and direct sunlight. Handle with care using appropriate protective gloves to prevent skin contact. APPLICATIONS: 4-(2,2-Diethoxy-ethoxy)-but-1-ene is utilized in organic synthesis as masked diol building block as detailed in Synthetic Communications. It's employed in preparation of certain macrolide antibiotics mentioned in Journal of Antibiotics. Additionally, this compound serves as intermediate for synthesizing polyether-containing pharmaceuticals reported in Organic & Biomolecular Chemistry. The diethoxy group provides valuable protecting groups for diol functionality in complex molecule synthesis.