中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
11-溴十一胺 | 11-bromoundecanamide | 5875-26-3 | C11H22BrNO | 264.206 |
10-十一烯醛 | 10-Undecenal | 112-45-8 | C11H20O | 168.279 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
十二烷二酰胺 | 1,10-decanedicarboxamide | 6224-99-3 | C12H24N2O2 | 228.335 |
—— | 10-Amino-decansaeureamid | 91015-31-5 | C10H22N2O | 186.297 |
1-氨基-10-十一烯 | undec-10-en-1-amine | 62595-52-2 | C11H23N | 169.31 |
—— | N-(oct-7-enyl)-undecyl-10-enamide | 195320-83-3 | C19H35NO | 293.493 |
—— | E/Z-2-azacyclooctadec-9-enone | —— | C17H31NO | 265.439 |
Rhodium-catalysed reactions of N-benzyl- or N-alkyl-aminoalkenes (6) with H2/CO can give cyclic amines (7) (7–13 ring size) in good to excellent yields when BIPHEPHOS is used as a ligand. Hydrogenation of the aminoalkene becomes a competing reaction for the smaller rings but can be overcome by using a H2/CO gas ratio of 1 : 5. Reactions of 2-alkenyloxybenzylamines (13) gave 9-, 12- and 17-membered rings (14) in 30–40% yield, but dimer formation (16) and/or hydrogenation were competing reactions. Similar reactions of alkenylamides and ortho-alkenylanilines gave only non-cyclized amino aldehydes as products in low isolated yields.