Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1994-11-18
1995-11-28
Lone, Werren B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568448, 568458, 568466, C07C 4720, C07C 4561
Patent
active
054710057
ABSTRACT:
A procedure for forming methylmalonaldehyde from propionaldehyde, an alkyl formate and a sodium alkoxide, utilizing a crossed-Claisen condensation is disclosed. The procedure avoids the formation of aldol condensation products. Also disclosed are processes for preparing 3-alkoxy-2-methylpropenals such as 2-methyl-3-(2-methyl-2-propenoxy)propenal from methylmalonaldehyde. The latter products are useful in the synthesis of carotenoids.
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Lone Werren B.
Loyola University of Chicago
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