Preparation and Characterization of New C2- and C1-Symmetric Nitrogen, Oxygen, Phosphorous, and Sulfur Derivatives and Analogs of TADDOL. Part II
作者:Arkadius Pichota、Volker Gramlich、Hans-Ulrich Bichsel、Thomas Styner、Thomas Knöpfel、Ralf Wünsch、Tobias Hintermann、W. Bernd Schweizer、Albert K. Beck、Dieter Seebach
DOI:10.1002/hlca.201200147
日期:2012.8
α′,α′‐tetraphenyl‐1,3‐dioxolan‐4,5‐dimethanamines) (Scheme 2) and ureas, 12–15, and to TADDOP derivatives with seven‐membered OPO ester rings (Schemes 3 and 4). Cl/P‐Replacement via the MichaelisArbuzov reaction (Scheme 7) on mono‐ and dichlorides, derived from TADDOL, are described. It was not possible to obtain phosphines with the P‐atom attached to the benzhydrylic C‐atom of the TADDOL skeleton
TADDOL(= α,α,α' ,α' -Tetraaryl -1,3-二氧戊环-4,5-二甲醇)和相应的二氯化物被转化成TADDAMINs(=(4小号,5小号)-2,2,Ñ,N'-四甲基-α,α,α',α'-四苯基-1,3-二氧杂戊基4,5-二甲胺(方案2)和脲12至15以及具有七元O的TADDOP衍生物 P 0酯环(方案3和4)。Cl / P-替换通过的米氏阿尔布佐夫反应(方案7上的单-和二氯化物),从TADDOL衍生,进行说明。无法获得P原子连接到TADDOL骨架的二羟基C原子上的膦(方案6和7)。讨论了30多种新的TADDOL衍生物中的10种的X射线晶体结构(图1和2)。提供了完整的实验细节。