Abstract Phosphanorcaradienes are an appealing class of phosphorus compounds that can serve as synthons of transient phosphinidenes. However, the synthesis of such species is a formidable task owing to their intrinsic high reactivity. Herein we report straightforward synthesis, characterization and reactivity studies of a phosphanorcaradiene, in which one of the benzene rings in the flanking fluorenyl substituents is intramolecularly dearomatized through attachment to the phosphorus atom. It is facilely obtained by the reduction of phosphorus(III) dichloride precursor with potassium graphite. Despite being thermally robust, it acts as a synthetic equivalent of a transient phosphinidene. It reacts with trimethylphosphine and isonitrile to yield phosphanylidene-phosphorane and 1-phospha-3-azaallene, respectively. When it is treated with one and two molar equivalents of azide, iminophosphane and bis(imino)phosphane are isolated, respectively. Moreover, it is capable of activating ethylene and alkyne to afford [1 + 2] cycloaddition products, as well as oxidative cleavage of Si–H and N–H bonds to yield secondary phosphines. All the reactions proceed smoothly at room temperature without the presence of transition metals. The driving force for these reactions is most likely the high ring-constraint of the three-membered PC 2 ring and recovery of the aromaticity of the benzene ring.

Phosphinidene

Strain (injury)

Reactivity

10.1038/s41467-024-49042-1

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Assessment of the thermal and microstructural properties of metakaolin-air lime based materials at an early age

Applied Clay Science (2020)

Dajiang Zhang Dongmin Wang Jihui Zhao Yiren Wang Ze Liu

Metakaolin

Pozzolanic reaction

Pozzolanic activity

Portlandite

10.1016/j.clay.2020.105619

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Citations (13)

Effect of SiO2/Na2O mole ratio on the properties of foam geopolymers fabricated from circulating fluidized bed fly ash

International Journal of Minerals Metallurgy and Materials (2014)

Ze Liu Ningning Shao Tianyong Huang Jun‐Feng Qin Dongmin Wang

10.1007/s12613-014-0950-5

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Citations (33)

Morphological and mineralogical insights into acetic acid modifying and hydraulic process on steel slag for enhanced reactivity

Construction and Building Materials (2021)

Binbin Huo Baoliang Li Chun Chen Yamei Zhang Dongmin Wang

Cementitious

Reactivity

Surface Modification

Microscale chemistry

Specific surface area

10.1016/j.conbuildmat.2021.125004

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Citations (20)

Comparative Analysis of GF-1 and HJ-1 Data to Derive the Optimal Scale for Monitoring Heavy Metal Stress in Rice

International Journal of Environmental Research and Public Health (2018)

Dongmin Wang Xiangnan Liu

Remote sensing can actively monitor heavy metal contamination in crops, but with the increase of satellite sensors, the optimal scale for monitoring heavy metal stress in rice is still unknown. This study focused on identifying the optimal scale by comparing the ability to detect heavy metal stress in rice at various spatial scales. The 2 m, 8 m, and 16 m resolution GF-1 (China) data and the 30 m resolution HJ-1 (China) data were used to invert leaf area index (LAI). The LAI was the input parameter of the World Food Studies (WOFOST) model, and we obtained the dry weight of storage organs (WSO) and dry weight of roots (WRT) through the assimilation method; then, the mass ratio of rice storage organs and roots (SORMR) was calculated. Through the comparative analysis of SORMR at each spatial scale of data, we determined the optimal scale to monitor heavy metal stress in rice. The following conclusions were drawn: (1) SORMR could accurately and effectively monitor heavy metal stress; (2) the 8 m and 16 m images from GF-1 were suitable for monitoring heavy metal stress in rice; (3) 16 m was considered the optimal scale to assess heavy metal stress in rice.

Dry weight

10.3390/ijerph15030461

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Citations (4)