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EFFECT OF ADDITION OF UREA AND ITS THERMAL DERIVATIVES TO A LEAD (II) OXIDE-AMMONIUM DIHYDROGENPHOSPHATE MIXTURE ON YIELD OF CYCLO-OCTAPHOSPHATE PRODUCED BY HEATING

机译：将尿素及其热衍生物加入铅（II）氧化铵二氢磷酸盐混合物的效果对通过加热产生的环皂酯的产率

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ATSUSHI TAKENAKA; TATSUHIKO ENDO; HIROAKI ONODA;
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1. Formation of urea, isourea, and triazine derivatives from diisopropylcyanamide with trifluoroacetic anhydride and trifluoromethanesulfonic anhydride: thermal instability of urea and isourea derivatives [J] . William P.Norris, Lawrence H.Merwin, Gregory S.Ostrom The Journal of Organic Chemistry . 1997,第26期

机译：由二异丙基氰酰胺与三氟乙酸酐和三氟甲磺酸酐形成尿素，异脲和三嗪衍生物：尿素和异脲衍生物的热不稳定性

2. 2,2′-[2,4-Bis(naphthalen-1-yl)cyclobutane-1,3-diyl]bis(1-methylpyridinium) diiodide: thermal-induced [2 + 2] cycloaddition reaction of a heterostilbene [J] . Boonnak N., Chanawanno K., Chantrapromma S., Acta Crystallographica Section E: Crystallographic Communications . 2012,第1期

机译：2,2'-[2,4-双（萘-1-基）环丁烷-1,3-二基]双（1-甲基吡啶）二碘化物：异苯乙烯的热诱导[2 + 2]环加成反应

3. From dihydrated iron(III)phosphate to monohydrated ammonium-iron(II)phosphate: Solvothermal reaction mediated by acetone-urea mixtures [J] . Alfonso B.F., Trobajo C., Piqué C., Journal of Solid State Chemistry . 2012,第Null期

机译：从二水合磷酸铁（III）到一水合磷酸铁铵（II）：丙酮-脲混合物介导的溶剂热反应

4. 22′-24-Bis(naphthalen-1-yl)cyclobutane-13-diylbis(1-methylpyridinium) diiodide: thermal-induced 2 + 2 cycloaddition reaction of a heterostilbene [O] . Suchada Chantrapromma, Kullapa Chanawanno, Nawong Boonnak, 2012

机译：22-24-双（萘-1-基）环丁烷-13-二基双（1-甲基吡啶鎓）二碘化物：杂二烯的热诱导2 + 2环加成反应

5. Formation of Sodium cyclo-Triphosphate by the Thermal Reaction of Sodium Dihydrogenphosphate-Organic Nitrogen Compound Mixtures. [O] . Atsushi TAKENAKA, Satoshi KIKUI, Itaru MOTOOKA, 1998

机译：通过二氢磷酸钠 - 有机氮复合混合物的热反应形成环三磷酸钠。

1. 利用尿素、碳酸氢铵脱除尾气中二氧化硫产硫酸铵的设备 [P] . 中国专利： CN211384504U . 2020-09-01

2. 电加热分解碳酸氢铵产生二氧化碳气体发生装置 [P] . 中国专利： CN205623367U . 2016.10.12

3. METHOD FOR OBTAINING STEROID DERIVATIVES 1 The invention relates to a new method for producing steroid derivatives having a hydrocarbon residue in the 17a position, saturated or unsaturated, substituted or unsubstituted, or a dicloalkyl radical, and having physiological activity. a prenatal radical, for example, compounds of 3-oxo-13p-ethyl-17a-ethynyl-17, p-oxygone — 4,9,11-triene, consisting in the fact that 3-ethylenedioxy-17-oxo-13 is prepared first 3-ethylgon- 4,9,1 i-triene which is reacted with an ethynylation reagent followed by hydrolysis of the ketal group at the 3 G7a-ethynyl derivative position. However, the ketalization of the 3-oxo group of the corresponding 3,17-dioxosteroid is not selective, with a low yield of the intermediate 3-ketal, which reduces the yield of the target product. In addition, in the known method, a 4,9,11-trienoic steroid with a closed ring A is used as a starting product, which can be obtained with the complete synthesis of a steroid only from an [P] . 外国专利： SU422142A3 . 1974-03-30

机译：获得类固醇衍生物的方法1本发明涉及一种新的制备类固醇衍生物的方法，该类固醇衍生物具有在17a位上的烃基，饱和或不饱和，取代或未取代的，或二氯烷基基团，并具有生理活性。产前自由基，例如3-oxo-13p-ethyl-17a-ethynyl-17，p-oxygone-4,9,11-triene的化合物，其特征在于3-乙烯二氧基-17-oxo-13是首先准备使3-乙基贡-4,9,1 i-三烯与乙炔化试剂反应，然后水解3 G7a-乙炔基衍生物位置的缩酮基。然而，相应的3，17-二氧代甾族化合物的3-氧代基的缩酮化不是选择性的，中间体3-缩酮的产率低，这降低了目标产物的产率。另外，在已知方法中，具有闭环A的4,9,11-三烯类固醇被用作起始产物，其可以仅通过从甲壳素完全合成类固醇来获得。

4. Process for the production of solid urethane polyisocyanate-urea diisocyanate mixtures and mixtures produced by this process [P] . 外国专利： GB842338A . 1960-07-27

机译：固体氨基甲酸酯多异氰酸酯-脲二异氰酸酯混合物的生产方法以及通过该方法生产的混合物

5. Producing lead-free piezoceramic material having perovskite phase with composition, comprises thermally treating a mixture with perovskite starting materials of the phase, and producing piezoceramic component with the piezoceramic material [P] . 外国专利： DE102008008903A1 . 2009-04-30

机译：生产具有组成的钙钛矿相的无铅压电陶瓷材料，包括用该相的钙钛矿起始材料对混合物进行热处理，以及用该压电陶瓷材料生产压电陶瓷组分。

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EFFECT OF ADDITION OF UREA AND ITS THERMAL DERIVATIVES TO A LEAD (II) OXIDE-AMMONIUM DIHYDROGENPHOSPHATE MIXTURE ON YIELD OF CYCLO-OCTAPHOSPHATE PRODUCED BY HEATING

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