Total Synthesis of Vitamins PALLADIUM CATALYST IN THE MANUFACTURE OF VITAMIN A AND OTHER NATURAL PRODUCTS
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چکیده
A new Hoffmann-La Roche plant at Nutley, New Jersey, which recently started production is to make pseudoionone, a key intermediate in the synthesis of vitamins A and E and 8-carotene, from acetone and acetylene. Previous syntheses of these substances have been only partial, starting from citral extracted from lemon-grass oil. The new total synthesis obviates the previous dependence on nature and ensures a stable price and regular source of these products.
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تاریخ انتشار 2005