Photocycloaddition of Six‐Membered Cyclic Enones to Propen‐2‐yl Isocyanate |
| |
| Authors: | Maryam Bahaji Paul Margaretha |
| |
| Affiliation: | 1. Chemistry Department, University of Hamburg, Martin‐Luther‐King‐Platz 6, D‐20146 Hamburg, (phone: +49?40?42838?4316;2. fax: +49?40?42838?5595) |
| |
| Abstract: | On irradiation in the presence of propen‐2‐yl isocyanate ( 4 ), six‐membered cyclic enones 3 are converted into regio‐ and stereoisomeric mixtures of [2+2] cycloadducts 5 – 10 ; the preferentially formed HT products, 5 – 8 , can be converted into the corresponding bicyclic amines by acid hydrolysis, whereas, under these conditions, the regioisomeric HH‐isocyanato derivatives undergo a retro‐Mannich reaction. |
| |
| Keywords: | Cyclobutanes Photocycloadditions Propen‐2‐yl isocyanate Isocyanates Photochemistry Bicyclo[4.2.0]octan‐2‐ones, 7‐amino‐ |
|
|
