| 摘要 |
1,208,090. Nootkatone. R. FIRMENICH, G. FIRMENICH, R. E. FIRMENICH, and F. H. FIRMENICH, [trading as FIRMENICH & CIE.]. 25 Sept., 1969 [25 Sept., 1968], No. 47344/69. Heading 2C2. Nootkatone, of the formula is prepared by hydrohalogenating nootkatene of the formula with a gaseous hydrogen halide and oxidizing the product. The preferred oxidizing agent is a mixture of chromic acid and aqueous sulphuric acid, but others are specified also. Examples are given. |
