NEW FRAGRANCES FROM 2-METHYLFURAN: II 103
104 JOURNAL OF COSMETIC SCIENCE The reactions were controlled by TLC developed with a 9:1 hexane-acetone mixture. Aidehyde 1 was prepared according to the procedure described in the literature (6), with a yield of 45-66%. GENERAL PROCEDURE FOR PREPARATION OF ACETALS 2 AND 3 The following raw materials were charged to the reactor: aidehyde (0.2 mol), selected glycol (0.22 mol), toluene (100 cm3), and FeSO 4 (0.2 g). The reaction mixture was brought to boiling and the stoichiometric volume of water was collected by means of an azeotropic distillation head. The toluene solution was washed with water to neutral pH and dried over anhydrous MgSO 4. After removing the solvent, crude acetal was distilled under vacuum. Table II shows the properties of the newly synthesized furan acetals. REFERENCES (1) J. Nowicki and J. G6ra, J. Cosmet. Sci. (this issue). (2) L. Cerveny, A. Marchoul, and M. Peskova, Perrum. Kosmet., 77(3), 198 (1996). (3) T. Yoshida (IFF) US Patent 4289700 (1981). (4) J. Kula, B. Bragiel, and J. G6ra, P, erfum. Kosmet., 76(6), 368 (1995). (5) J. Nowicki and J. G6ra, Po//ena TSPK, 39(11), 449 (1995). (6) Y. K. Yuriev and N. S. Zefirov, Zh. Obshch, Khim. 33, 1150 (1960).
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