C1(C)C=CC(S(N[N:11]2[CH2:18][C:17](=[CH2:19])[CH2:16][CH:15](NS(C3C=CC(C)=CC=3)(=O)=O)[CH2:14][C:13](=[CH2:31])N2)(=O)=O)=CC=1.[H-].[Al+3].[Li+].[H-].[H-].[H-].[2H-].[Al+3].[Li+].[2H-].[2H-].[2H-]>O1CCCC1>[CH3:15][C:17]1([CH:16]2[CH2:15][CH2:14][CH2:13][CH2:31][CH2:14][CH2:13][CH2:31]2)[CH2:18][NH:11][CH2:19][CH:17]([CH3:16])[CH2:18][NH:11][CH2:19]1In separate experiments a suspension of 1,5-di(4-toluenesulfonamido)-3,7-bismethylenediazacyclooctane 1a (0.223 g, 0.50 mmol) in tetrahydrofuran (50 mL) containing either lithium aluminum hydride (0.25 g, 6.6 mmol) or lithium aluminum deuteride (0.25 g, 6.0 mmol) was stirred under a nitrogen atmosphere for 42 h. The reaction mixture was quenched by the dropwise addition D2O (1 mL) followed by 40% sodium hydroxide or 40% sodium deuteroxide solution (0.5 mL) with external cooling. Stirring was continued at room temperature for 5 h and the white granular precipitate that formed was removed by filtration and washed with anhydrous ether (3×50 mL). The combined organic extracts were concentrated on a rotary evaporator to give 0.052 g 0.057 g (82%) of 5 as a colorless solid, mp XX° C. The crude product was dissolved in benzene (25 mL) to which was added H2O (3×1 mL) and the mixture was subjected to azeotropic distillation using a Dean Stark tube. Analysis of the product by Cl NH3MS showed:
Wird geladen…
