Green Synthesis Characterization and Thermotropic Behaviour of O-Linked Glycopyranosides of Phenolic Esters

Figure 1

Synthesis of O-glycopyranosides. Reagents and conditions: (i) 0.3 mole% Si-H⁺ catalyst, 1 mmole of 1a–d, 3 mmole of 2, 3–5 hours of stirring, and temp 80–100°C; (ii) 0.1 mole% Si-H⁺ catalyst, 2 mmole of 3a–d, 1 mmole of 4a–c, 3–7 hours of stirring, and temp 80–100°C.