Aziridinemethanol sulfonate esters react with tetrathiomolybdate 1 to give thiirane derivatives as the major product and cyclic disulfides as minor product under mild reaction conditions via an unprecedented thia-aza-Payne-type rearrangement. Interestingly, when the reaction of 1 was carried out with 2-aziridino-cyclohexanol derivatives it resulted in the formation of thia-bicyclo[3.1.1]heptane or
3-Hydroxypyrrolidines from epoxysulfonamides and dimethylsulfoxonium methylide
作者:David M. Hodgson、Matthew J. Fleming、Zhaoqing Xu、Changxue Lin、Steven J. Stanway
DOI:10.1039/b606583j
日期:——
N-Tosyl-protected 3-hydroxypyrrolidines are prepared by reaction of dimethylsulfoxonium methylide with readily available epoxysulfonamides.
N-甲苯磺酰基保护的3-羟基吡咯烷是通过使二甲基亚砜基亚甲基与易得的环氧磺酰胺反应而制备的。
Novel organic-solvent-free aziridination of olefins: Chloramine-T–I2 system under phase-transfer catalysis conditions
作者:Daisuke Kano、Satoshi Minakata、Mitsuo Komatsu
DOI:10.1039/b104940m
日期:2001.11.29
A variety of olefins could be aziridinated successfully by employing iodine-catalysed aziridination in water with a catalytic amount of a quaternary ammonium salt. Furthermore, the larger-scale process of styrene aziridination gives a highly pure aziridine in good yield via simple work-up.
The outcome of a tandem aza-Payne/hydroamination reaction is modified via the use of a latent nucleophile. The latter initially serves as an electrophile to intercept the aziridine alkoxide and afterward turns into a nucleophile thereby performing the aziridine ring opening, out competing the intramolecular aza-Payne pathway. Subsequent hydroamination in the same pot provides N-Ts enamide carbonates, which can be easily converted into biologically significant 3,4-dihydroxylactams.
Silica–Water Reaction Media: Its Application to the Formation and Ring Opening of Aziridines