中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2-Hydroperoxy-2,2-diphenylethanol | 33334-32-6 | C14H14O3 | 230.263 |
1,1-二苯基环氧乙烷 | 1,1-diphenyloxirane | 882-59-7 | C14H12O | 196.249 |
二苯基羟基乙酸 | Benzilic acid | 76-93-7 | C14H12O3 | 228.247 |
2-苯氧基-1,1-二苯基乙醇 | 2-phenoxy-1,1-diphenyl-ethanol | 5432-02-0 | C20H18O2 | 290.362 |
二苯乙醇酸甲酯 | methyl benzilate | 76-89-1 | C15H14O3 | 242.274 |
1,1-二苯基-1-羟基乙酸乙酯 | ethyl benzilate | 52182-15-7 | C16H16O3 | 256.301 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2-Hydroperoxy-2,2-diphenylethanol | 33334-32-6 | C14H14O3 | 230.263 |
1,1-二苯基环氧乙烷 | 1,1-diphenyloxirane | 882-59-7 | C14H12O | 196.249 |
—— | 4,4-diphenyl-1,3-dioxolan-2-one | 95348-48-4 | C15H12O3 | 240.258 |
—— | 1,1-dimethoxy-2,2-diphenylethane | 51936-06-2 | C16H18O2 | 242.318 |
—— | 2,2-Dimethyl-4,4-diphenyl-1,3-dioxolane | 84895-19-2 | C17H18O2 | 254.329 |
The homogeneous titanium- and dye-catalyzed as well as the heterogeneous semiconductor particle-catalyzed photohydroxymethylation of ketones by methanol were investigated in order to evaluate the most active photocatalyst system. Dialkoxytitanium dichlorides are the most efficient species for chemoselective hydroxymethylation of acetophenone as well as other aromatic and aliphatic ketones. Pinacol coupling is the dominant process for semiconductor catalysis and ketone reduction dominates the Ti(OiPr)4/methanol or isopropanol systems. Application of dilution effects on the TiO2 catalysis leads to an increase in hydroxymethylation at the expense of the pinacol coupling.