Multi-step reaction with 9 steps
1.1: titanium(IV) isopropylate; tert.-butylhydroperoxide; D-(-)-diisopropyl tartrate / 2,2,4-trimethylpentane; dichloromethane / Molecular sieve; Inert atmosphere
2.1: sodium azide; lithium perchlorate / acetonitrile
3.1: palladium 10% on activated carbon; hydrogen / ethyl acetate / 20 °C / 760.05 Torr
4.1: di-isopropyl azodicarboxylate; triphenylphosphine / chloroform / Reflux
5.1: triethylamine / methanol / Inert atmosphere; Reflux
6.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 20 °C
7.1: N-cyclohexyl-N'-β-(4-methylmorpholinium)ethylcarbodiimide p-toluenesulfonate; copper dichloride / acetonitrile
8.1: dichloromethane / 0.5 h / 20 °C
9.1: (benzotriazole-1-yloxy)tris(pyrrolidino)phosphonium hexafluorophosphate; 1-hydroxy-7-aza-benzotriazole; N-ethyl-N,N-diisopropylamine / dichloromethane / 0.08 h / 20 °C
9.2: 0.5 h / 20 °C
With
titanium(IV) isopropylate; tert.-butylhydroperoxide; sodium azide; 1-hydroxy-7-aza-benzotriazole; (benzotriazole-1-yloxy)tris(pyrrolidino)phosphonium hexafluorophosphate; di-isopropyl azodicarboxylate; palladium 10% on activated carbon; hydrogen; lithium perchlorate; N-cyclohexyl-N'-β-(4-methylmorpholinium)ethylcarbodiimide p-toluenesulfonate; D-(-)-diisopropyl tartrate; triethylamine; N-ethyl-N,N-diisopropylamine; 3-chloro-benzenecarboperoxoic acid; triphenylphosphine; copper dichloride;
In
methanol; 2,2,4-trimethylpentane; dichloromethane; chloroform; ethyl acetate; acetonitrile;
DOI:10.1002/cmdc.201000109