Facile direct synthesis of amides from trichloroethyl esters using catalytic DBU
作者:Minh Thanh La、Hee-Kwon Kim
DOI:10.1139/cjc-2018-0234
日期:2018.12
A practical method for the direct synthesis of amide compounds is described. Using small quantities of DBU as a catalyst, the direct conversion of 2,2,2-trichloroethyl esters to their corresponding...
The effect of two electron-withdrawing groups on remote tertiary hydrogens susceptible to electrophilic fluorination using F2
作者:Chava Gal、Shlomo Rozen
DOI:10.1016/s0022-1139(00)82295-2
日期:1982.7
The direct electrophilic fluorination of unactivated remotetertiaryhydrogens is effected by the number, nature and distance of electron-withdrawing groups. The effect of these groups on reducing electron density of the tertiary CH bond seems to be additive. The more remote these groups are from the reaction center, the higher the yield of the fluorination.
Selective fluorination on tertiary carbon-hydrogen single bonds in the aliphatic series
作者:Chava Gal、Giora Ben-Shoshan、Shlomo Rozen
DOI:10.1016/s0040-4039(00)71136-1
日期:1980.1
Fluorine acts as an electrophile and, as such, reacts with remote and unactivated tertiaryhydrogens in aliphatic alcohols and acids, resulting in the corresponding fluorine derivatives.
氟充当亲电子试剂,并因此与脂族醇和酸中的远程未活化叔氢反应,生成相应的氟衍生物。
GAL CH.; BEN-SHOSHAN G.; ROZEN SH., TETRAHEDRON LETT., 1980, 21, NO 52, 5067-5070
作者:GAL CH.、 BEN-SHOSHAN G.、 ROZEN SH.
DOI:——
日期:——
ROZEN, SHLOMO;GAL, CHAVA, J. ORG. CHEM., 52,(1987) N 22, 4928-4933