在甲醇中进行光解时,二叔丁基次膦叠氮化物(4; R = Bu t)在失去氮的情况下重排,得到NP NP-二叔丁基膦酰胺酸甲酯(6; R = Bu t,X = OMe)(71%),大概是通过被溶剂捕获的单体偏亚膦酸酯(5; R = Bu t)。尽管二叔丁基次膦酰胺在乙醇中也是主要产物,而在异丙醇中是主要产物,但在其他醇和叔丁胺中也会发生类似的重排。二isopropylphosphinic叠氮化物(4; R = PR我)以类似的方式的行为,但在甲醇中较少受阻二乙基次膦叠氮化物(4; R = ET)患有广泛溶剂分解,以二乙基次膦酸甲酯。
Synthesis of teleocidins A, B and their congeners. Part 3. Synthesis of dihydroteleocidin B-4 (dihydroteleocidin B), teleocidin B-3 and teleocidin B-4
摘要:
Details of the synthesis method of the tumor promoters teleocidin B-3 (3), teleocidin B-4 (4) and dihydroteleocidin B-4 (9) (= dihydroteleocidin B) from (S)- and (R)-methyl N-methyl-N-[7-(3,6,7-trimethyl-1,6-octadien-3-yl)-4-indolyl]-L-valinates (20b and 20a) are presented.