Aminodienylesters. I: The Cycloaddition Reactions of tert-Aminodienylester with .ALPHA.,.BETA.-Unsaturated Carbonyl Compounds, Styrenes, and Quinones.
作者:Takeshi KOIKE、Mituharu TANABE、Naoki TAKEUCHI、Seisho TOBINAGA
DOI:10.1248/cpb.45.243
日期:——
Methyl 5-(N, N-dimethylamino)-2, 4-pentadienoate (tert-aminodienylester 1) was synthesized by condensation of methyl crotonate (2) with N, N, N', N'-tetramethylmethylenediamine (3). The reactivity of 1 was investigated with methyl propiolate (4), dimethyl 2-butynedionate (5), dimethyl maleae (6), dimethyl fumarate (7), 2-buten-4-olide (8), 2-cyclohexenone (9), styrene (10), trans-β-nitrostyrene (11), 1, 4-benzoquinone (19), methyl 1, 4-naphtoquinone-5-carboxylate (21), 1, 4-naphthoquinone (24), juglone (26), 5-methoxy-1, 4-naphthoquinone (28), naphthazarin (31), and naphthazarin dimethyl ether (33). In addition, 5-(N, N-dimethylamino)-2, 4-pentadienenitrile (tert-aminodienylnitrile 37) was synthesized by condensation of crotononitrile (36) with 3. The reactivity of 37 was investigated with dimethyl 2-butynedionate (5), and 2-cyclohexenone (9).
5-(N, N-二甲基氨基)-2, 4-戊二烯酸甲酯(叔氨基二烯醇 1)是由巴豆酸甲酯 (2) 与 N, N, N', N'- 四甲基亚甲基二胺 (3) 缩合合成的。研究了 1 与丙炔酸甲酯 (4)、2-丁炔二酸二甲酯 (5)、马来酸二甲酯 (6)、富马酸二甲酯 (7)、2-丁烯-4-内酯 (8)、2-环己烯酮 (9)、苯乙烯 (10)、反式-β-硝基苯乙烯 (11) 的反应活性、1,4-苯醌(19)、1,4-萘醌-5-羧酸甲酯(21)、1,4-萘醌(24)、朱格隆(26)、5-甲氧基-1,4-萘醌(28)、萘甲萘灵(31)和萘甲萘灵二甲醚(33)。此外,5-(N,N-二甲基氨基)-2,4-戊二烯腈(叔氨基二烯腈 37)是通过巴豆腈(36)与 3 缩合合成的。