The chemistry of terpenes. Part XIII. Synthesis of (+)-3β,7,7-trimethyl-anti,cis,anti-tricyclo[4,1,0,0<sup>2,4</sup>]heptane and (±)-trans-3-(1-hydroxyethyl)-6,6-dimethylbicyclo[3,1,0]hexane, deamination products of the cis-caran-4-amines
作者:P. H. Boyle、W. Cocker、R. L. Gordon、P. V. R. Shannon
DOI:10.1039/j39710002127
日期:——
4]heptane (1) and of (±)-trans-3(1-hydroxyethyl)-6,6-dimethylbicyclo[3,1,0]hexane (2) are described. Cyclisation of the keto-aldehyde (10), obtained by the ozonolysis of (+)-car-3-ene (9) gives (+)-2-acetyl-6,6-dimethylbicyclo[3,1,0]hex-2-ene (11), which with diazoethane affords the pyrazoline, (–)-1β-acetyl-3,3,7β-trimethyl-cis,anti,cis-8,9-diazatricyclo[4,3,0,02,4]non-8-ene (12). Photolysis of this
(+)-3β,7,7-三甲基-反,顺,反-三环[4,1,0,0 2,4 ]庚烷(1)和(± )-描述了反式-3(1-羟乙基)-6,6-二甲基双环[3,1,0]己烷(2)。通过(+)-car-3-ene(9)的臭氧分解获得的酮醛(10)环化,得到(+)-2-乙酰基-6,6-二甲基双环[3,1,0] hex- 2-烯(11)与重氮乙烷一起提供吡唑啉,(–)-1β-乙酰基-3,3,7β-三甲基-顺式,反,顺式-8,9-二氮杂三环[4,3,0,0 2 ,4 ] non-8-ene(12)。该吡唑啉的光解产生(+)-2β-乙酰基-3β,7,7-三甲基-抗,顺,抗-三环[4,1,0,0 2,4]庚烷(13),其(+)-3α-差向异构体(14)和(+)-2-乙酰基-3-乙基-6,6-二甲基双环[3,1,0]己-2-烯(15 )。从化合物(13)上除去乙酰基存在困难。吡唑啉,(+)-3,3,7β-三甲基-顺,反,顺-8