Retention of Configuration in Two Photochemical Reactions: Formation of Cyclopropanimines by Extrusion of Molecular Nitrogen from Tetraalkyl??4??imino??1?? …

…, A Fuß, A Heublein, H Jakobi, B Seiferling

文献索引：Quast, Helmut; Fuss, Andreas; Heublein, Alfred; Jakobi, Harald; Seiferling, Bernhard Chemische Berichte, 1991 , vol. 124, # 11 p. 2545 - 2554

全文：HTML全文

被引用次数: 0

摘要

Abstract The 1-pyrazolin-4-ones 7 and 9 and the pyrazolidin-4-one 13 are condensed with alkanamines 8 to produce the imines 3, 10 and 12 in high yields. Direct irradiation of 3 with 350-nm light at 90 C in deuterated hydrocarbon solvents affords the cyclo-propanimines 4 in almost quantitative yields besides molecular nitrogen and small amounts of the imines 12 as a result of photoreduction. In [D 6] acetone, the cyclopropanimine 4b isomerizes in part of ...