作者:A. J. Blake、H. McNab、L. C. Monahan、S. Parsons、E. Stevenson                                    
                                    
                                        DOI:10.1107/s0108270196007020
                                    
                                    
                                        日期:1996.11.15
                                    
                                    In both 3-(N,N-diisopropylamino)-2-propenal, C9H17NO, (3), and 3-(1,2,3,4-tetrahydro-1-quinolinyl)-2-propenal, C12H13NO, (4), the entire enaminal system (O1-C1-C2-C3-N4) is approximately planar. The angles around the N atoms in (3) and (4) sum to values near 360 degrees, indicating planarity in both molecules. One of the two crystallographically independent molecules of (3) exhibits disorder in its isopropyl groups.