The photo-irradiation of 3, 4-bis(phenylmethyl)-2(5H)-furanone (5) in acetone or in methanol resulted in selective rearrangement of the 4-phenymethyl moiety and gave 5-phenyl-1-(phenylmethyl)-3-oxabocyclo[3.1.0]hexan-2-one (9)along with cis- and trans-3, 4-bis(phenylmethyl)dihydro-2(3H)-furanone (10a and 10b). The difference in photochemical behavior from that of β-apolignan (1) is discussed.
在
丙酮或
甲醇中光照 3,4-双(苯基甲基)-
2(5H)-呋喃酮(5)会导致 4-苯基甲基选择性重排,并得到 5-苯基-1-(苯基甲基)-3-氧杂阿环[3.1.0]己-2-酮(9)以及顺式和反式-3,4-双(苯基甲基)二氢-2(3H)-
呋喃酮(10a 和 10b)。讨论了其光
化学行为与 β-apolignan (1) 的不同之处。