Multi-step reaction with 8 steps
2: m-chloroperoxybenzoic acid / CH2Cl2 / 1.) 0 deg C, 0.5 h, 2.) RT, 2 h
3: 1.) NaH, 2.) n-Bu4NI / 1.) THF, RT, 20 min, 2.) THF, RT, 5 h
4: 99 percent / CH3ONa, n-Bu4NI / methanol / 12 h / Ambient temperature
5: 1.) n-BuLi, hexamethylphosphoramide (HMPA), 2.) pTsCl, LiCl / 1.) ether, hexane, 0 deg C, 10 min, 2.) a) 0 deg C, 1 h, b) RT, 2 h
6: 79 percent / Li2CuCl4 / tetrahydrofuran / 0.5 h
7: 72 percent / BF3*OEt2, Et3N / CH2Cl2; benzene; hexane / 0.75 h / -78 °C
8: 97 percent / oxalyl chloride, DMSO / tetrahydrofuran / -78 - -35 °C
With
N,N,N,N,N,N-hexamethylphosphoric triamide; n-butyllithium; oxalyl dichloride; dilithium tetrachlorocuprate; boron trifluoride diethyl etherate; sodium methylate; tetra-(n-butyl)ammonium iodide; sodium hydride; dimethyl sulfoxide; triethylamine; p-toluenesulfonyl chloride; 3-chloro-benzenecarboperoxoic acid; lithium chloride;
In
tetrahydrofuran; methanol; hexane; dichloromethane; benzene;
DOI:10.1021/jo00256a007