analogue. The ring closure of the N-benzyl-substituted aminodiol with formaldehyde was investigated and regioselective formation of the spiro-oxazolidine ring was observed. Hydroboration or dihydroxylation of sabinol or its benzyl ether with OsO₄/NMO resulted in the formation of sabinane-based diols and triols following a highly stereospecific reaction. Treatment of sabinol with m-CPBA afforded O-benzoyl
以立体选择性方式合成了衍生自(+)-沙宾醇的二齿二醇以及三齿三醇和
氨基二醇的文库。通过相应三
氯乙亚
氨酸酯的Overman重排将沙宾醇转化为烯丙基三
氯乙酰胺。将保护基改变为Boc后,烯胺用OsO 3 / NMO进行立体定向二羟基化,得到(1R,2R,3R,5R)-
氨基二醇非对映异构体。将获得的伯
氨基二醇转化为仲类似物。研究了N-苄基取代的
氨基二醇与
甲醛的闭环,并发现了螺-
恶唑烷环的区域选择性形成。Sabinol或其苄基醚与OsO 3 / NMO的氢
硼化或二羟基化导致高度立体选择性反应后,形成基于Sabinane的二醇和三醇。用间-CPBA处理沙宾醇,得到作为直接二羟基化产物的非对映异构体的O-苯甲酰基三醇,而不是预期的环氧醇。所得的
氨基二醇,二醇和三醇从中度到良好的选择性被用作手性催化剂,用于
二乙基锌和
苯甲醛的反应。