中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1-(二甲氧基甲基)-4-硝基苯 | 4-nitrobenzaldehyde dimethyl acetal | 881-67-4 | C9H11NO4 | 197.191 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
4-(5,5-二甲基-1,3-二恶烷-2-基)苯胺 | 2-(4-aminophenyl)-5,5-dimethyl-1,3-dioxane | 107708-70-3 | C12H17NO2 | 207.272 |
[3-(5,5-二甲基-1,3-二噁-2-基)苯基]胺 | 2-(3'-aminophenyl)-5,5-dimethyl-1,3-dioxane | 51226-12-1 | C12H17NO2 | 207.272 |
The central functionalized tryptophan core of the celogentin/moroidin family of cyclic peptides has been prepared. The strategy incorporates a novel preparation of 4-iodobenzaldehyde and employs a Larock annulation as the key step.
3,3,9,9-Tetramethyl-1,5,7,11-tetraoxaspiro[5.5]undecane is introduced as a new, stable and chemoselective reagent for the protection of aldehydes and ketones under mild reaction condition in high yield.