Catalytic carbonylation of benzylic and allylic bromides by a rhodium zwitterionic complex under phase transfer catalysis conditions
作者:Shiyamalie Amaratunga、Howard Alper
DOI:10.1016/0022-328x(94)00001-s
日期:1995.2
The zwitterionic rhodiumcomplex, (COD)Rh(η6-C6H5BPh3) (1), can catalyze the carbonylation of benzylic and allylic bromides in the presence of 5 N NaOH and CH2Cl2 at atmospheric pressure and 40°C, with (C6H13)4N+HSO4− as the phase transfer catalyst, to give carboxylic esters as the major products.
两性离子铑络合物,(COD)的Rh(η 6 -C 6 H ^ 5 BPH 3)(1),可催化苄和烯丙基溴化物的羰基化在5 N NaOH和CH的存在2氯2在大气压力和40 ℃,用(C 6 H ^ 13)4 ñ + HSO 4 -作为相转移催化剂,以得到羧酸酯作为主要产物。
Herein, we present a decarboxylative nucleophilic fluorination of carboxylicacids with a silver catalyst. This strategy enables the synthesis of a myriad of diverse and valuable fluorinated motifs under mild conditions, demonstrating good functional-group tolerance and utility in late-stage functionalization. In contrast to traditional electrophilic fluorination, this nucleophilic method utilizes
ALPER, H.;HASHEM, KHALED;HEVELING, J., ORGANOMETALLICS, 1982, 1, N 6, 775-778
作者:ALPER, H.、HASHEM, KHALED、HEVELING, J.
DOI:——
日期:——
Photodecarboxylation of Substituted Naphthylmethyl Arylacetate Esters: Synthesis of Naphthylarylethanes
作者:James W. Hilborn、Reinaldo Moya-Barrios、Alison Thompson
DOI:10.1021/acs.joc.9b01871
日期:2019.9.20
naphthylmethyl arylacetate esters is reported where the aryl group is able to stabilize a charge transfer reaction. The reaction proceeds via intramolecular charge transfer from the donor to acceptor, thereby enhancing a pathway to produce, within the solvent cage, the desired diarylethane products. These in-cage naphthylarylethanes are produced in good yields, in a single photochemical step, with the use