From Sugars to Carbocycles. 3. Synthesis of Validatol and 4-epi-Validatol from Mannose and Glucose
摘要:
Validatol (4) and 4-epi-validatol (8) are synthesized from mannose and glucose, respectively. The key step in the synthesis of 4 is the base-induced intramolecular displacement reaction of the epoxy dithiane 14 to yield the six-membered carbocycle 15 exclusively.
From Sugars to Carbocycles. 3. Synthesis of Validatol and 4-epi-Validatol from Mannose and Glucose
摘要:
Validatol (4) and 4-epi-validatol (8) are synthesized from mannose and glucose, respectively. The key step in the synthesis of 4 is the base-induced intramolecular displacement reaction of the epoxy dithiane 14 to yield the six-membered carbocycle 15 exclusively.