Multi-step reaction with 13 steps
1: 84 percent / H2 / Lindlar catalyst / ethyl acetate
2: 81 percent / (COCl)2, DMSO, Et3N / CH2Cl2 / -78 °C
3: 88 percent / CH2Cl2
4: 94 percent / DIBALH / tetrahydrofuran
5: 80 percent / Ti(i-PrO)4, L-DIPT, t-BuOOH / CH2Cl2 / -23 °C
6: 2.) K2CO3, (C8H17)3NMeCl / 1.) THF, room temperature, 2.) MeCN
7: 72 percent / PdCl2(CH2CN)2 / tetrahydrofuran / Ambient temperature
8: 95 percent / aq. K2CO3 / methanol / Ambient temperature
9: 97 percent / NaH, Bu4NI / tetrahydrofuran
10: 1.) O3, 2.) Me2S / 1.) CH2Cl2
11: 65 percent / NaH, DMSO / tetrahydrofuran
12: 70 percent / aq. NaHCO3 / methanol
13: 72 percent / (COCl)2, DMSO, Et3N / CH2Cl2
With
titanium(IV) isopropylate; tert.-butylhydroperoxide; oxalyl dichloride; dimethylsulfide; L-(+)-diisopropyl tartrate; (C8H17)3NMeCl; hydrogen; tetra-(n-butyl)ammonium iodide; sodium hydride; diisobutylaluminium hydride; sodium hydrogencarbonate; potassium carbonate; ozone; dimethyl sulfoxide; triethylamine;
dichloro bis(acetonitrile) palladium(II); Lindlar's catalyst;
In
tetrahydrofuran; methanol; dichloromethane; ethyl acetate;
DOI:10.1021/jo961951r