Stannylquinones. Synthesis and utilization as quinone carbanion synthetic equivalents
作者:Lanny S. Liebeskind、Bruce S. Foster
DOI:10.1021/ja00179a072
日期:1990.11
Synthese des derives de (3-tributylstannyl)1,4-benzoquirone a partir de derives d'(4-ethynyl-4-hydroxy)cyclobut-2-enone et de methoxy tributyl stannane
这些合成衍生出 (3-三丁基锡烷基)1,4-苯并喹酮 a 部分衍生衍生出 d'(4-乙炔基-4-羟基)环丁-2-烯酮和去甲氧基三丁基锡烷
A stereoselective, palladium-catalyzed route to 4-oxygenated 5-alkylidenecyclopentenones and 3-oxygenated 2-alkylideneindanones
作者:Lanny S. Liebeskind、David Mitchell、Bruce S. Foster
DOI:10.1021/ja00259a064
日期:1987.12
Synthesis of p-chlorophenols (and -naphthols) from the thermal rearrangement of 4-chlorocyclobutenones
作者:Simon L. Xu、Harold W. Moore
DOI:10.1021/jo00027a057
日期:1992.1
A systematic study of the reaction of 4-hydroxycyclobutenones with thionyl chloride is reported. A useful model evolves from this study which allows the prediction of the site of chlorination for unsymmetrical examples. The chlorination is envisaged to involve the corresponding homoaromatic carbocation, and the site of chlorination takes place preferentially at the position substituted with the greater cation-stabilizing substituent. Specifically, this follows the general order of allyl > benzyl > alkyl > propargyl. The 4-chlorocyclobutenones prepared in this study were shown to be useful synthetic precursors to highly substituted chlorophenols and chloronaphthols.
LIEBESKIND, LANNY S.;FOSTER, BRUCE S., J. AMER. CHEM. SOC., 112,(1990) N3, C. 8612-8613