Birch, Stewart, Kolasch & Birch, LLP
Process for the preparation of furan compounds
A carbonyl compound represented by following Formula (1):wherein R1 represents hydrogen atom or an organic group; and R2 represents hydrogen atom or an organic group having a carbon atom at a bonding site with the carbonyl group in Formula (1), wherein R1 and R2 may be combined to form a ring with adjacent two carbon atoms, or an equivalent thereof is reacted with an unsaturated compound represented by following Formula (2):wherein each of R3, R4, and R5 represents hydrogen atom, a halogen atom, hydroxyl group, or an organic group and wherein R3 and R4 may be combined to form a ring with adjacent two carbon atoms, or a precursor thereof, to yield a furan compound represented by following Formula (3):wherein R3′ represents R3, R5 or hydrogen atom; and R1, R2, R3, R4, are R5 are as defined above.
Daicel Chemical Industries, Ltd.
C C
C07D C07D
inventional inventional
Takahiro Yasutaka Tatsuya
Iwahama Ishii Nakano