ω-haloalkylphosphoryl compounds: Synthesis and properties
摘要:
A general method of the synthesis of omega-haloalkylphosphoryl compounds was developed, a series of compounds of phosphonic and phosphine oxide type were synthesized. The ability of some omega-haloalkylphosphonates to undergo intramolecular cyclization into the corresponding 1,2-oxaphospholane and 1,2-oxaphosphorine was investigated depending on the solvent polarity, the presence of halogen ions in the solution, and temperature. Tetrahydrofuran was chosen as one of the most suitable solvents for the alkylation of CH acids with omega-haloalkylphosphoryl compounds.
An air and water insensitive visiblelightinduced hydrophosphinylation of unactivated alkenes is reported. A small amount of a simple and cheap compound, salicylaldehyde, is used as a photosensitizer. The reaction is carried out in a basic aqueous solution which enables the deprotonated salicylaldehyde to show visiblelight absorption.
Copper-Catalyzed Cross-Coupling of Alkyl and Phosphorus Radicals for C(sp<sup>3</sup>)–P Bond Formation
作者:Cheng-Kun Li、Ze-Kun Tao、Adedamola Shoberu、Wei Zhang、Jian-Ping Zou
DOI:10.1021/acs.orglett.2c02454
日期:2022.8.19
A CuI-catalyzed cross-coupling of alkyl- and phosphorus-centered radicals for C(sp3)–P bondformation is introduced. Diacyl peroxides, generated in situ from aliphatic acids and H2O2, serve as a source for alkyl radicals and also an initiator for the generation of phosphorus radicals from H–P(O) compounds.
介绍了一种 Cu I催化的以烷基和磷为中心的自由基的交叉偶联,以形成 C(sp 3 )-P 键。由脂肪酸和 H 2 O 2原位生成的二酰基过氧化物可作为烷基自由基的来源,也是从 H-P(O) 化合物生成磷自由基的引发剂。
Aksnes, Gunnar, Phosphorus, Sulfur and Silicon and the Related Elements, 1995, vol. 103, # 1-4, p. 55 - 62