Platinum-Catalyzed Enantioselective Tandem Alkylation/Arylation of Primary Phosphines. Asymmetric Synthesis of P-Stereogenic 1-Phosphaacenaphthenes
作者:Brian J. Anderson、Marites A. Guino-o、David S. Glueck、James A. Golen、Antonio G. DiPasquale、Louise M. Liable-Sands、Arnold L. Rheingold
DOI:10.1021/ol801616s
日期:2008.10.16
Enantioselectivetandem alkylation/arylation of primary phosphines with 1-bromo-8-chloromethylnaphthalene catalyzed by Pt(DuPhos) complexes gave P-stereogenic 1-phosphaacenaphthenes (AcePhos) in up to 74% ee. Diastereoselective formation of four P-C bonds in one pot with bis(primary) phosphines gave C2-symmetric diphosphines, including the o-phenylene derivative DuAcePhos, for which the rac isomer
Synthesis of 1H-cyclobuta[de]napthalene by organometallic methodology
作者:Lau S. Yang、Thomas A. Englear、Harold Shechter
DOI:10.1039/c39830000866
日期:——
1H-Cyclobuta[de]naphthalene is preparable by reactions of 1,8-dilithionaphthalene with dichloromethane and 1,8-bis(iodomagnesio)naphthalene with methylene bis(toluene-p-sulphonate).
1 ħ -Cyclobuta [ DE ]萘是通过制备的用二氯甲烷和1,8-二(iodomagnesio)萘与亚甲基双(甲苯1,8- dilithionaphthalene的反应p -磺酸盐)。
KIELY J. S.; BOUDJOUK PH., J. ORGANOMETAL. CHEM., 1979, 182, NO 2, 173-183