Photochemical rearrangements of quinone monoketals. Synthesis of substituted cyclopentenones
作者:Michael C. Pirrung、David S. Nunn
DOI:10.1016/s0040-4039(00)80042-8
日期:1988.1
The irradiation of quinone ethylene monoketals in acetic acid leads in high yield to substituted 4-(alkoxycarbonyl) cyclopentenones.
苯醌乙烯单缩酮在乙酸中的照射导致高产率生成取代的4-(烷氧羰基)环戊烯酮。
PIRRUNG, MICHAEL C.;NUNN, DAVID S., TETRAHEDRON LETT., 29,(1988) N 2, 163-166
作者:PIRRUNG, MICHAEL C.、NUNN, DAVID S.
DOI:——
日期:——
Photochemical rearrangements of quinone monoketals
作者:Michael C. Pirrung、David S. Nunn
DOI:10.1016/0040-4020(96)00207-4
日期:1996.4
provides, after hydrolysis, β-carboxy-substituted cyclopentenones. With a substituent at the β-position of the quinone monoketal, rearrangement selectivity is modestly in favor of the more substituted alkene product. With a substituent at the α-position of the quinone monoketal, rearrangement selectivity is strongly in favor of the less substituted alkene product. Possible mechanistic reasoning to explain
Synthesis and structure of new crown ethers with 1,4-phenylene and 1,4-naphthylene units
作者:Monica Cîrcu、Anca Petran、Andrei Serban Gâz、Elena Bogdan、Anamaria Terec、Ciprian I. Raţ、Richard A. Varga、Ion Grosu
DOI:10.1016/j.molstruc.2011.01.052
日期:2011.6
Abstract The synthesis of monomers and dimers of some new crown ether type macrocycles with 1,4-phenylene and 1,4-naphthylene units are reported. The structural investigations of the compounds were carried out by NMR spectra, MS measurements and the single crystal X-ray solid state molecular structure of one compound.
摘要 报道了一些具有1,4-亚苯基和1,4-亚萘基单元的新冠醚型大环单体和二聚体的合成。化合物的结构研究是通过核磁共振谱、质谱测量和一种化合物的单晶 X 射线固态分子结构进行的。