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Journal articles on the topic '2-diazaphospholes'

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Published: 5 June 2025

Last updated: 1 August 2025

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1

Polbom, Kurt, Alfred Schmidpeter, Gottfried Märkl, and Angela Willhalm. "1,2,4-Diazaphosphole und 1,2,4-DiazaarsoIe: Ringstruktur und Struktur wasserstoffbrücken-gebundener Paare und Helices/1,2,4-Diazaphospholes and 1,2,4-Diazaarsoles: Ring Structure and Structure of Hydrogen-Bonded Pairs and Helices." Zeitschrift für Naturforschung B 54, no. 2 (1999): 187–92. http://dx.doi.org/10.1515/znb-1999-0206.

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Among the large family of azaphospholes 1,2,4-diazaphospholes feature a particularly stable ring system. 3,5-Unsubstituted and 3,5-equally substituted 1,2,4-diazaphospholes and -diazaarsoles are best made from 1,3-bis(dimethylamino)-2-phospha/arsaallyl chlorides and hydrazines. This way four examples for single crystal X-ray structure investigations were prepared: The unsubstituted 1,2,4-diazaphosphole 2 and -diazaarsole 4, the N-substituted 1 -(2-pyridyl) 1.2.4-diazaphosphole 1, and the C-substituted 3,5-di-tert-butyl 1,2,4-diazaphosphole 3. They all possess planar rings with small angles at

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2

Abakumov, G. A., N. O. Druzhkov, G. G. Kazakov, G. K. Fukin, R. V. Rumyantcev, and V. K. Cherkasov. "N-heterocyclic compounds of phosphorus based ON N,N-disubstituted 9,10-phenanthrenediimines." Доклады Академии наук 489, no. 4 (2019): 368–72. http://dx.doi.org/10.31857/s0869-56524894368-372.

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N‑heterocyclic phospholes based on N,N-disubstituted 9,10-phenanthrenediimines were synthesized. Dimeric 1,3,2-diazaphospholes were obtained by reduction of 2-bromo diazaphospholes. In case phenanthrediimine with the most sterically hindrance, diphosphole can dissociate into phosphorus-centered radicals at record low temperatures (220 K) for this class. This behavior will allow the synthesis of new metal complexes and phosphorus-organic compounds under mild conditions.

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3

Stieglitz, Gudrun, Bernhard Neumüller та Kurt Dehnicke. "Synthese und Kristallstrukturen der 1,3,4-λ5σ4-Diazaphosphole / Syntheses and Crystal Structures of the 1,3,4-λ5σ4-Diazaphospholes". Zeitschrift für Naturforschung B 48, № 6 (1993): 730–36. http://dx.doi.org/10.1515/znb-1993-0606.

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has been prepared by the reaction of Li(DME)[P(t-Bu)2] with benzonitrile in 1,2-dimethoxyethan solution. The compound forms violet, moisture sensitive crystals, which were characterized by an X-ray structure determination [Space group P21/n, Z = 4, 3282 observed unique reflections, R = 0.082. Lattice dimensions at -40°C: a = 851.0(5), b = 1238.0(3), c = 3029.2(4) pm, β = 90.53(4)°]. The compound forms an ion pair, in which the lithium atom is coordinated by two oxygen atoms of a chelating DME molecule, by an oxygen atom of a nonchelating DME molecule, and by the nitrogen atom of the planar dia

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4

Gholivand, Khodayar, Zahra Shariatinia, Mehrdad Pourayoubi, and Sedigheh Farshadian. "Syntheses and Spectroscopic Studies of Some New Diazaphospholes and Diazaphosphorinanes. Crystal Structure of 4." Zeitschrift für Naturforschung B 60, no. 10 (2005): 1021–26. http://dx.doi.org/10.1515/znb-2005-1001.

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New diazaphospholes and diazaphosphorinanes with formula were synthesized and characterized by 1H, 13C, 31P NMR and IR spectroscopy and elemental analysis. The structure of compound 1 has been determined by X-ray crystallography. A one-dimensional polymeric chain was observed in the crystalline lattice produced by intermolecular -P=O. . .H-N- and -C=O. . .H-N-hydrogen bonds. Compounds 1 and 2 contain five-membered rings and show high values for 2J(PNH) and 2J(P,C) coupling constants due to the ring strain. These constants are reduced seriously in compounds with six-membered rings. In compound

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5

Guo, Xiang-Yun, Quan-Rui Wang, and Feng-Gang Tao. "Synthesis of 2-Acyl-2H-1,2,3-diazaphospholes and their diels-alder reaction with cyclopentadiene." Chinese Journal of Chemistry 22, no. 9 (2010): 1003–7. http://dx.doi.org/10.1002/cjoc.20040220925.

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6

Guo, Xiangyun, Li Feng, Quanrui Wang, Zhiming Li, and Fenggang Tao. "1,3-Dipolar cycloadditions of 9-diazofluorenes and diphenyldiazomethane to 2-acyl-2H-1,2,3-diazaphospholes." Journal of Heterocyclic Chemistry 43, no. 2 (2006): 353–59. http://dx.doi.org/10.1002/jhet.5570430215.

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7

Zurmühlen, Frank, Wolfgang Rösch, and Manfred Regitz. "Phosphorverbindungen ungewöhnlicher Koordination, 5 [3+2]- sowie [4+2]-Cycloadditionsreaktionen an ein kinetisch stabilisiertes Phosphaalken/ Phosphorus Compounds with Unusual Coordination, 5 [3+2]- as well as [4+2]-Cycloaddition Reactions to a Kinetically Stabilized Phosphaalkene." Zeitschrift für Naturforschung B 40, no. 8 (1985): 1077–86. http://dx.doi.org/10.1515/znb-1985-0816.

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AbstractAliphatic diazo compounds display different reactivity towards the phosphaalkene 9: diazomethane, diazoethane and terf-butyl diazoacetate (10a-c) formally react with Si/P-insertion to give the hitherto unknown phosphaalkenes 12a-c. In contrast, 1-diazo-2.2-dim ethylpropane (10d) and diazotrimethylsilylmethane (10e) lead to the 1.2.4-diazaphospholes 15 and 17, respectively, if the primary products (11d , 14) are treated with sodium hydroxide in tetrahydrofuran. T he reaction of the nitrile oxides 18a-c with 9 yields the 1.2.4-oxazaphospholes 20a-c; the [3+2] cycloadducts 19a-c are assum

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8

Boggs, James E., Zefu Niu, and Leonid S. Khaikin. "Structures of 1H-, 2H-, and 3H-1,2,3-diazaphospholes and their 2-formyl and 4-amino derivatives." Journal of Molecular Structure: THEOCHEM 124, no. 1-2 (1985): 155–66. http://dx.doi.org/10.1016/0166-1280(85)87027-5.

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9

Guo, Xiangyun, Li Feng, and Fenggang Tao. "1,3-Dipolar cycloadditions of 9-diazofluorenes with 2-acyl-2H-1,2,3- diazaphospholes to synthesise phosphiranes and trimers." Journal of Chemical Research 2006, no. 2 (2006): 130–32. http://dx.doi.org/10.3184/030823406776330936.

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10

Khaikin, L. S., O. E. Grikina, L. V. Vilkov, and J. E. Boggs. "Structure of 1,2,3-diazaphosphole and several of its derivatives. Use of the results of nonempirical quantum chemical calculations in the electron diffraction investigation of 2-acetyl-5-methyl-and 5-methyl-2-phenyl-1,2,3-diazaphospholes." Journal of Structural Chemistry 28, no. 4 (1988): 607–11. http://dx.doi.org/10.1007/bf00749603.

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11

Huo, Rui-Ping, Xiang Zhang, and Cai-Feng Zhang. "Theoretical elucidation on the mechanism of 1H-1,2,4-diazaphospholes synthesis from 1,3-bis (amino)-2-phosphaallyl chlorides with hydrazine." Journal of Physical Organic Chemistry 32, no. 2 (2018): e3899. http://dx.doi.org/10.1002/poc.3899.

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12

Mehrotra, K. N., I. S. Singh, and Jalpana Roy. "Novel Syntheses of 2-Ethoxy- and 2-Phenoxy-2-oxo-1,3,4,5-tetraaryl-2,3-dihydro-1H-P v-1,3,2-diazaphospholes and of 2-Ethoxy-2-thioxo-3,4,5-triaryl-2,3-dihydro-P v-1,3,2-oxazaphospholes." Synthesis 1985, no. 01 (1985): 81–83. http://dx.doi.org/10.1055/s-1985-31117.

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13

Kerth, Jochen, Udo Werz та Gerhard Maas. "Reactions of (1-Diazo-2-oxoalkyl)silanes with 3 H -1,2,3,4-Triazaphospholes: a Route to Short-Lived 4-Imino-1,2,4(λ 5 )-diazaphospholes". Tetrahedron 56, № 1 (2000): 35–42. http://dx.doi.org/10.1016/s0040-4020(99)00770-x.

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14

Kerth, Jochen, Udo Werz та Gerhard Maas. "ChemInform Abstract: Reactions of (1-Diazo-2-oxoalkyl)silanes with 3H-1,2,3,4-Triazaphospholes: A Route to Short-Lived 4-Imino-1,2,4(λ5)-diazaphospholes." ChemInform 31, № 16 (2010): no. http://dx.doi.org/10.1002/chin.200016170.

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15

Manz, Berthold, Uwe Bergsträßer, Jochen Kerth та Gerhard Maas. "Thermal Reactions of 5-Alkylidene-4,5-dihydro-3H-1,2,4(λ3)-diazaphospholes (4-Phosphapyrazolines) – A Route to Various PHeterocycles and to 2-Phosphabutadienes". Chemische Berichte 130, № 6 (1997): 779–88. http://dx.doi.org/10.1002/cber.19971300617.

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16

MANZ, B., U. BERGSTRAESSER, J. KERTH та G. MAAS. "ChemInform Abstract: Thermal Reactions of 5-Alkylidene-4,5-dihydro-3H-1,2,4(λ3)-diazaphospholes (4-Phosphapyrazolines) - A Route to Various P-Heterocycles and to 2-Phosphabutadienes." ChemInform 28, № 36 (2010): no. http://dx.doi.org/10.1002/chin.199736201.

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17

Streubel, Rainer, Hendrik Wilkens, Frank Ruthe, and Peter G. Jones. "Synthesis and Characterization of Some 2 H -1,4,2-Diazaphosphole-, 2 H -1,3,2-Diazaphosphole- and 2 H -1,2-Diazaphosphole- P -sulfide Derivatives." Tetrahedron 56, no. 1 (2000): 21–26. http://dx.doi.org/10.1016/s0040-4020(99)00768-1.

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18

El-Shamy, I. E., E. Hleli, M. A. El-Hashash, I. Kelnar, and A. M. Abdel-Mohsen. "2-Methyl-6-(4-aminophenyl)-4,5-dihydro-3(2H)-pyridazinone Synthon for Some New Annelated 1,2,3-Selena/Thiadiazoles and 2H-Diazaphospholes with Anticipated Biological Activity and Quantum Chemical Calculations." Molecules 28, no. 3 (2023): 1280. http://dx.doi.org/10.3390/molecules28031280.

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A convenient and efficient synthetic protocol for the new selenadiazole. Thiadiazole and diazaphosphole derivatives incorporating a pyridazine moiety originating from 4-(4-aminophenyl)-4-oxobutanoic acid (1) were described. All newly synthesized compounds were evaluated for their antimicrobial activity using the disk diffusion method, and their cytotoxicity was evaluated against brine shrimp lethality bioassay. Using density functional theory (DFT), the frontier molecular orbital (FMO) and molecular electrostatic potential (MEPS) were studied to estimate the chemical reactivity and kinetic sta

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19

Weber, Lothar, Olaf Kaminski, H. G. Stammler, and Beate Neumann. "Transition-Metal-Substituted Acylphosphanes and Phosphaalkenes. 26. Synthesis and Structure of the 2-Metallo-1,2,3-diazaphospholes [cyclic](.eta.5-C5Me5)(CO)2Fe-N-P:C(NMe2)-C(CO2R):N (R = Et, tBu)." Organometallics 14, no. 2 (1995): 581–83. http://dx.doi.org/10.1021/om00002a001.

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20

Burck, Sebastian, Dietrich Gudat, Falk Lissner, Kalle Nättinen, Martin Nieger, and Thomas Schleid. "2-Amino-substituted 1,3,2-Diazaphospholenes." Zeitschrift für anorganische und allgemeine Chemie 631, no. 13-14 (2005): 2738–45. http://dx.doi.org/10.1002/zaac.200500120.

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21

Bawazir, Wafa A., Tarik E. Ali, Mohammed A. Assiri, Ali A. Shati, Mohammad Y. Alfaifi, and Serag E. I. Elbehairi. "Ultrasound-assisted synthesis of novel 2-aryl-3-ethoxy-5-methyl-3-oxido-2H-thiazolo[2,3-e][1,4,2]diazaphosphole-6-carboxylates and their anticancer efficacy in inducing apoptosis and autophagy and targeting cell cycle progression." RSC Advances 14, no. 50 (2024): 37554–69. http://dx.doi.org/10.1039/d4ra07173e.

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22

Pooja, Maheshwari, and K. Bansal Raj. "Diels-Alder reaction with the >C=P– functionality of annelated 1,3-azaphospholes." Journal of Indian Chemical Society Vol. 91, Aug 2014 (2014): 1591–99. https://doi.org/10.5281/zenodo.5732766.

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Department of Chemistry, The IIS University, Jaipur-302 020, Rajasthan, India E-mail : rk.bansal@iisuniv.ac.in <em>Manuscript received 25 January 2014, accepted 15 February 2014</em> The Diels-Alder reactions of the >C=P– functionality in annelated 1,3-azaphospholes and their diaza-analogues have been reviewed. The article includes experimental and theoretical results accomplished in the author’s (RKB) laboratories.  

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23

Lu, Yu, Zhong-Hua Gao, Xiang-Yu Chen, et al. "Formylation or methylation: what determines the chemoselectivity of the reaction of amine, CO2, and hydrosilane catalyzed by 1,3,2-diazaphospholene?" Chem. Sci. 8, no. 11 (2017): 7637–50. http://dx.doi.org/10.1039/c7sc00824d.

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24

Liu, Liu, Yile Wu, Peng Chen, et al. "Mechanism, catalysis and predictions of 1,3,2-diazaphospholenes: theoretical insight into highly polarized P–X bonds." Organic Chemistry Frontiers 3, no. 4 (2016): 423–33. http://dx.doi.org/10.1039/c6qo00002a.

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1,3,2-Diazaphospholene-based compounds 2 with two electron donor amino groups on the heterocyclic skeleton, featuring an extremely polarized and weak P–X bond (X = H, CCMe, NMe<sub>2</sub>, PMe<sub>2</sub> and SMe), are predicted to have a useful catalytic ability.

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25

Sabbaghi, Fahimeh, Mehrdad Pourayoubi, Abolghasem Farhadipour, Nazila Ghorbanian, and Pavel V. Andreev. "A novel tubular hydrogen-bond pattern in a new diazaphosphole oxide: a combination of X-ray crystallography and theoretical study of hydrogen bonds." Acta Crystallographica Section C Structural Chemistry 73, no. 7 (2017): 508–16. http://dx.doi.org/10.1107/s205322961700794x.

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In the structure of 2-(4-chloroanilino)-1,3,2λ4-diazaphosphol-2-one, C12H11ClN3OP, each molecule is connected with four neighbouring molecules through (N—H)2...O hydrogen bonds. These hydrogen bonds form a tubular arrangement along the [001] direction built from R 3 3(12) and R 4 3(14) hydrogen-bond ring motifs, combined with a C(4) chain motif. The hole constructed in the tubular architecture includes a 12-atom arrangement (three P, three N, three O and three H atoms) belonging to three adjacent molecules hydrogen bonded to each other. One of the N—H groups of the diazaphosphole ring, not co-

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26

Kerth, Jochen, та Gerhard Maas. "Cycloadducts from Diazocumulenes and 1,2,3(λ3)-Diazaphospholes: Thermolysis Generates Products Derived from 3-Alkenylidene-1,2,3(λ5)-diazaphospholes". European Journal of Organic Chemistry 1999, № 10 (1999): 2633–43. http://dx.doi.org/10.1002/(sici)1099-0690(199910)1999:10<2633::aid-ejoc2633>3.0.co;2-i.

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27

Burck, Sebastian, Dietrich Gudat, Kalle Nättinen, Martin Nieger, Mark Niemeyer, and Dirk Schmid. "2-Chloro-1,3,2-diazaphospholenes – A Crystal Structural Study." European Journal of Inorganic Chemistry 2007, no. 32 (2007): 5112–19. http://dx.doi.org/10.1002/ejic.200700643.

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28

Janča, Michal, Marek Nečas та Jiří Příhoda. "Pyridinium 2-thioxo-2,3-dihydro-1H-naphtho[2,3-d]-1,3,2λ5-diazaphosphole-2-thiolate". Acta Crystallographica Section E Structure Reports Online 58, № 7 (2002): o772—o773. http://dx.doi.org/10.1107/s1600536802010620.

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29

Kibardin, A. M., T. V. Gryaznova, and A. N. Pudovik. "Synthesis of 2-ethyl-1,3-dibutyl-4,5-dimethyl-1,3,2-diazaphospholene." Bulletin of the Academy of Sciences of the USSR Division of Chemical Science 36, no. 7 (1987): 1554. http://dx.doi.org/10.1007/bf01557553.

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30

CHUSAINOVA, N. G., L. V. SMIRNOVA, E. A. IRTUGANOVA, and E. YA ZABOTINA. "ChemInform Abstract: Reaction of 5-Methyl-2-phenyl-1,2,3-diazaphosphole with Allenylphosphonates." ChemInform 25, no. 20 (2010): no. http://dx.doi.org/10.1002/chin.199420223.

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31

Wilkens, Hendrik, Frank Ruthe, Peter G. Jones та Rainer Streubel. "Syntheses of 2H-1,3,2-Diazaphosphole, 2H-1,4,2-Diazaphosphole, and Δ3-1,3,2-Oxazaphospholene Complexes; First Examples of 2H-Azaphosphirene Complex Formation by [2+1] Cycloaddition". Chemistry - A European Journal 4, № 8 (1998): 1542–53. http://dx.doi.org/10.1002/(sici)1521-3765(19980807)4:8<1542::aid-chem1542>3.0.co;2-x.

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32

Kibardin, A. M., Yu B. Mikhailov, T. V. Gryaznova, and A. N. Pudovik. "Reaction of 2-ethyl-2-oxo-1,3-dibutyl-4,5-dimethyl-1,3,2-diazaphospholene with trichlorosilane." Bulletin of the Academy of Sciences of the USSR Division of Chemical Science 35, no. 4 (1986): 878. http://dx.doi.org/10.1007/bf00954265.

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33

Khusainova, Narkis, Vladislav Zverev, Goulnara Garipova, Rafael Cherkasov, and Arkady Pudovik. "Theoretical Investigation of Interaction of Hydrogen Dithiophosphate with 2-Phenyl-2H-1,2,3-diazaphosphole." Phosphorus, Sulfur, and Silicon and the Related Elements 177, no. 8-9 (2002): 2229. http://dx.doi.org/10.1080/10426500213307.

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34

Khusainova, Narkis G., Olga A. Mostovaya, Nail M. Azancheev, Igor A. Litvinov, Dmitry B. Krivolapov, and Rafael A. Cherkasov. "Reaction of 2-acetyl-5-methyl-2H-1,2,3-diazaphosphole with butane-2,3-diol." Mendeleev Communications 14, no. 5 (2004): 212–14. http://dx.doi.org/10.1070/mc2004v014n05abeh001926.

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35

Arbuzov, B. A., �. N. Dianova, and E. Ya Zabotina. "Structure of the UV irradiation product of 5-methyl-2-phenyl-1,2,3-diazaphosphole." Bulletin of the Academy of Sciences of the USSR Division of Chemical Science 36, no. 3 (1987): 580–82. http://dx.doi.org/10.1007/bf00955843.

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36

Pilgram, Kurt H., and Richard D. Skiles. "1,3-DIHYDRO-1,3,2-DIAZAPHOSPHOLE 2-OXIDES. A CONVENIENT ONE-POT-SYNTHESIS FROM 2-NITRODIPHENYLAMINES AND TRIALKYL PHOSPHITES." Phosphorous and Sulfur and the Related Elements 36, no. 1-2 (1988): 117–24. http://dx.doi.org/10.1080/03086648808079005.

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37

Assiri, M. A., T. E. Ali, A. Y. Alzahrani та M. A. Salem. "Simple One-Pot Synthesis of Novel 5-(3,5-Dialkyl-1H-pyrazol-1-yl)-2-ethoxy-1,4,2λ5-diazaphosphole 2-Oxides". Russian Journal of Organic Chemistry 59, № 2 (2023): 285–89. http://dx.doi.org/10.1134/s1070428023020094.

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38

Zhou, Jia, Yongge Qiu, Kesheng Feng, and Ru-Yu Chen. "ChemInform Abstract: Synthesis of 2-(p-Toluenesulfonamido)-4-phenyl-4,5-dihydro-1H-1,3,4-diazaphosphole 4-Oxides." ChemInform 30, no. 12 (2010): no. http://dx.doi.org/10.1002/chin.199912183.

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39

Rösch, Wolfgang, Udo Hees, and Manfred Regitz. "Phosphorverbindungen ungewöhnlicher Koordination, 191) 1,2,4-Diazaphosphole durch [3+2]-Cycloaddition von Diazoverbindungen an ein stabiles Phosphaalkin." Chemische Berichte 120, no. 10 (1987): 1645–52. http://dx.doi.org/10.1002/cber.19871201007.

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40

Babu, Y. Hari, M. Anil Kumar, K. Srinivasulu, C. Suresh Reddy, and C. Naga Raju. "Synthesis and antimicrobial activity of novel 2-(heteryl-carboxamido)-2,3-dihydro-1H-1,2,5-oxadiazolo[3,4-c] [1,3,2]diazaphosphole-2-oxides." Arkivoc 2006, no. 15 (2007): 189–97. http://dx.doi.org/10.3998/ark.5550190.0007.f23.

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41

KIBARDIN, A. M., T. V. GRYAZNOVA, and A. N. PUDOVIK. "ChemInform Abstract: 2-Ethoxy-1,3-dibutyl-4,5-dimethyl-1,3,2-diazaphospholene (I) in Reactions with Halosilanes." ChemInform 25, no. 33 (2010): no. http://dx.doi.org/10.1002/chin.199433219.

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42

Zhou, Jia, Yongge Qiu, Kesheng Feng, and Ru-Yu Chen. "Synthesis of 2-(p-Toluenesulfonamido)-4-phenyl-4, 5-dihydro-1H-1, 3, 4-diazaphosphole 4-oxides." Synthetic Communications 28, no. 24 (1998): 4673–78. http://dx.doi.org/10.1080/00397919808004532.

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43

Szarvas, Laszlo, Zoltan Bajko, Stefan Fusz, et al. "A Zwitterionic Phosphonio-1, 2, 4-Diazaphospholide and Neutral 1, 2, 4-Diazaphosphole — A Comparative Study of Molecular Structures and Co-ordination Properties." Zeitschrift für anorganische und allgemeine Chemie 628, no. 11 (2002): 2303–10. http://dx.doi.org/10.1002/1521-3749(200211)628:11<2303::aid-zaac2303>3.0.co;2-f.

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44

DIANOVA, E. N., E. YA ZABOTINA, I. Z. AKHMETKHANOVA, and YA D. SAMUILOV. "ChemInform Abstract: 5-Methyl-2-phenyl-1,2,3-diazaphosphole (I) in the Reaction with 2,5-Di( methoxycarbonyl)-3,4-diphenylcyclopentadienone (II)." ChemInform 24, no. 3 (2010): no. http://dx.doi.org/10.1002/chin.199303208.

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45

Shabana, R., and S. S. Atrees. "STUDIES ON ORGANOPHOSPHORUS COMPOUNDS PART XVII. THE REACTION OF LAWESSON'S REAGENT WITH 1,2-PHENYLENEDIAMINE DERIVATIVES, 2-AMINOPHENOL AND 2-AMINO-2-METHYL-1-PROPANOL, A NEW ROUTE TO 1,3,2-DIAZAPHOSPHOLE-2-SULFIDE." Phosphorus, Sulfur, and Silicon and the Related Elements 105, no. 1-4 (1995): 57–62. http://dx.doi.org/10.1080/10426509508042046.

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46

Abdou, Wafaa M., Mohamed S. Bekheit, and Reham F. Barghash. "Microwave-assisted synthesis and diabetic/antioxidant assessments of 1,3,2-benzothiazaphosphole-3(2H)-carbothioamide- and -diazaphosphole-3(2H)-dicarbothioamide 2-oxide derivatives." Monatshefte für Chemie - Chemical Monthly 147, no. 10 (2016): 1797–808. http://dx.doi.org/10.1007/s00706-016-1721-y.

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Khaikin, Leonid S., Lev V. Vilkov, and James E. Boggs. "Molecular structure and conformation of 2-acetyl-5-methyl-1,2,3-diazaphosphole: the use of ab initio calculations in an electron diffraction study." Journal of Molecular Structure 172 (February 1988): 241–53. http://dx.doi.org/10.1016/0022-2860(88)87020-0.

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Manz, Berthold, Jochen Kerth та Gerhard Maas. "Photochemical Isomerizations of 5-Alkylidene-4,5-dihydro-3H-1,2,4(λ3)-diazaphospholes (4-Phosphapyrazolines): (5→4) Ring Contraction Generates Azomethineimine Dipoles". Chemistry - A European Journal 4, № 5 (1998): 903–13. http://dx.doi.org/10.1002/(sici)1521-3765(19980515)4:5<903::aid-chem903>3.0.co;2-j.

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Abdou, Wafaa M., Mohamed S. Bekheit, and Reham F. Barghash. "Erratum to: Microwave-assisted synthesis and diabetic/antioxidant assessments of 1,3,2-benzothiazaphosphole-3(2H)-carbothioamide and -diazaphosphole-3(2H)-dicarbothioamide 2-oxide derivatives." Monatshefte für Chemie - Chemical Monthly 147, no. 9 (2016): 1659. http://dx.doi.org/10.1007/s00706-016-1767-x.

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Mikoluk, Michael D., Robert McDonald та Ronald G. Cavell. "Chemistry of Diazaphospholephosphines. 2. Exocyclic Phosphine−Sulfido, −Selenido, and −Imido Derivatives of a Diazaphospholephosphine System. Crystal and Molecular Structures of Two Diazaphospholephosphine Imines: 4-(Difluoro((p-cyanotetrafluorophenyl)imino)phosphorano)-2,5-dimethyl-2H-1,2,3σ2-diazaphosphole and 4-(Bis(dimethylamino)(((pentamethylcyclopentadienyl)dichlorotitanio)imino)phosphorano)-2,5-dimethyl-2H-1,2,3σ2-diazaphosphole". Inorganic Chemistry 38, № 12 (1999): 2791–801. http://dx.doi.org/10.1021/ic9802101.

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