已开发出使用 SF 5 Cl 的铜催化 1,3-烯炔区域发散型氯五氟磺酰化策略。区域选择性由 1,3-烯炔的结构和取代模式决定,从而能够轻松获得三类含 SF 5的产品:炔丙基氯、1,3-二烯和丙二烯。反应系统涉及自由基物质,其中氯原子从 SF 5 Cl 转移到碳自由基被认为是主要途径。通过简单的官能团转换可以合成不同类型的 SF 5 - 结构单元。
A novel rearrangement of tertiary α-allenic alcohol carbamates. Preparation of 2-O-carbamoyl-4,4-disubstituted-1,3-butadienes
作者:Richard W. Friesen、Aleksandra E. Kolaczewska、Nina Khazanovich
DOI:10.1016/s0040-4039(00)61758-6
日期:1992.11
Treatment of a variety of tertiary α-allenic alcohols with N-tosyl isocyanate results in a facile and novel rearrangement reaction that provides isolable 2-O-carbamoyl-4,4-disubstituted-1,3-butadienes in a stereoselective manner.
Diethyl (3-Trimethylsilyl-2-propynyl)phosphonate, a New Reagent for the Preparation of Terminal Conjugated Enynes
作者:Andrew W. Gibson、Guy R. Humphrey、Derek J. Kennedy、Stanley H. B. Wright
DOI:10.1055/s-1991-26481
日期:——
The preparation and use of diethyl (3-trimethylsilyl-2-propynyl)phosphonate as a reactant with aldehydes and ketones for the synthesis of terminal conjugated enynes is reported. The reagent is readily obtained and purified by simple procedures amenable to scale up. The scope of the Horner-Wadsworth-Emmons reaction using the reagent has been briefly explored.
FeCl<sub>3</sub>-Mediated Reaction of Alkynols with Iodine: An Efficient and Convenient Synthetic Route to Vinyl Iodides
作者:Lei Su、Chun-Yan Lei、Wei-Yong Fan、Liang-Xian Liu
DOI:10.1080/00397911.2010.481739
日期:2011.3.28
[image omitted] The FeCl3-mediated reaction of alkynols with iodine resulted in intramolecular addition of hydroxyl to alkyne to produce a wide range of iodocycloenol ethers in good to excellent yields under mild reaction conditions. On the other hand, 1,2-diiodides were obtained in good yields when propargyl alcohol reacted with iodine in the same condition.
Kostikov, R. R.; Molchanov, A. P.; Nagi, Sh. M., Journal of Organic Chemistry USSR (English Translation), 1983, vol. 19, p. 1291 - 1297
作者:Kostikov, R. R.、Molchanov, A. P.、Nagi, Sh. M.
DOI:——
日期:——
10.1021/acs.orglett.4c01768
作者:Wang, Lin、Qin, Wenhui
DOI:10.1021/acs.orglett.4c01768
日期:——
using SF5Cl has been developed. The regioselectivity is dictated by the structural and substitution patterns of 1,3-enynes, enabling facile access to three classes of SF5-containing products: propargylic chlorides, 1,3-dienes, and allenes. The reaction systems involve radical species, where the transfer of a chlorine atom from SF5Cl to a carbon radical is considered the predominant pathway. Diverse types
已开发出使用 SF 5 Cl 的铜催化 1,3-烯炔区域发散型氯五氟磺酰化策略。区域选择性由 1,3-烯炔的结构和取代模式决定,从而能够轻松获得三类含 SF 5的产品:炔丙基氯、1,3-二烯和丙二烯。反应系统涉及自由基物质,其中氯原子从 SF 5 Cl 转移到碳自由基被认为是主要途径。通过简单的官能团转换可以合成不同类型的 SF 5 - 结构单元。