作者:Islamov、Gaisin、Dzhemilev、D’yakonov
DOI:10.1007/s11172-024-4278-7
日期:——
A stereoselective synthesis of new (6Z,10Z)-16-hydroxyhexadeca-6,10-dienoic and (7Z,11Z)-18-hydroxyoctadeca-7,11-dienoic acid that involved the Ti-catalyzed homocyclomagnesiation of the functionally substituted 1,2-dienes was developed. Subsequent intramolecular cyclization of the synthesized ω-hydroxyalkadienoic acids in the presence of catalytic amounts (2.5–10 mol.%) of hafnium(iv) triflate gave
新型 (6Z,10Z)-16-羟基十六-6,10-二烯酸和 (7Z,11Z)-18-羟基十八-7,11-二烯酸的立体选择性合成涉及功能取代的 1 的 Ti 催化均环镁化,开发了2-二烯。随后在催化量 (2.5–10 mol.%) 三氟甲磺酸铪 (iv) 存在下,合成的 ω-羟基链二烯酸进行分子内环化,得到具有药效基团 1Z,5Z-二烯部分的不饱和大环内酯和二内酯。