【正文】
2H 3 CHR2甲基丁酰胺 R2甲基丁胺 CCH 5 C 2H 3 CHON B rCNOB rCH 5 C 2C H 3H ?? ? +CNH 5 C 2H 3 CHC O三元環(huán)過渡態(tài) 構(gòu)型保持 SN2 Stereochemistry Preparation of Aamines Curtius amp。 Schmidt Rearrangements R C O C l + N a N 3R C O O H + N a N 3R C N N NO N 2 N C ORH 2 O R N H 2酰疊氮化合物 Curtius Schmidt H 2 OC C lO N a N 3 C N3ON H 2 6 0 %H 3 O +N a N 3C lC O 2 HC lN H 2 7 5 %?Preparation by Mannich reaction Preparation of Aamines C H 3 C C H 3O+ C H 2 O + ( C 2 H 5 ) 2 N H 2 + C l C H 3 C C H 2 C H 2 N + H ( C 2 H 5 ) 2 C l O6 6 ~ 7 5 %+ C H 2 O + ( C H 3 ) 2 N H 2 + C l C C H 3OC C H 2 C H 2 N + H ( C H 3 ) 2 C l O7 0 %?胺基酮 ?H 酮 甲醛 胺鹽 酸性水、醇溶液 胺甲基化反應(yīng) H 2 C O + H N ( C H 3 ) 2 H O C H 2 N ( C H 3 ) 2 H + C H 2 N + ( C H 3 ) 2R C C H 2O HC H 2 N + ( C H 3 ) 2 H+R C C H 2 C H 2 N ( C H 3 ) 2O機(jī)理 Preparation of Aamines Mannich Base C H 3 C C H 3O++C H OC H ONOC H 3C H 3 N H 2T r o p i n o n