Photoinduced reactions of Cr(CO)(3)-coordinated N-cyanoazepine: [6+4] cycloaddition with conjugated dienes
Yükleniyor...
Tarih
2003
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The tricarbonyl(N-cyanoazepine)chromium(0) complex (2) is formed when (MeCN)(3)Cr(CO)(3) is treated photochemically with N-cyanoazepine (1). U.v photolysis of Cr(CO)(3)(eta(6)-N-cyanoazepine)chromium(0) (2) and conjugated dienes [1,3-butadiene (3), trans-1,3-pentadiene (4), trans,trans-2,4-hexadiene (5)] in PhMe give the [6+4]cycloadducts, tricarbonyl{eta(4:2)-11-N-cyano-11-azabicyclo[4.4.1]-undeca-2,4,8-triene}chromium(0) complexes (6-8). The pi-complex (2) and these new bicyclic compounds (6-8) were purified by chromatography, recrystallized, isolated as analytically pure crystalline solids in moderate yields and characterized by mass, i.r. and n.m.r. spectroscopy. The heterobicyclotrienes, 11-N-cyano-11-azabicyclo[4.4.1]undeca-2,4,8-triene (9-11), were isolated from the complexes (6-8) by heating in PhMe, and their structures were assigned by the same spectroscopic methods.
Açıklama
Anahtar Kelimeler
N-cyanoazepine, Cr(CO)(3)-coordinated, Photoinduced
Kaynak
Transition Metal Chemistry
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
28
Sayı
2
