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Имеется статья: P. Pierron, Ann. chim., том 11, стр. 361, 1919.
Интересует: Название статьи и полная расшифровка названия журнала
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+++Аnn. chim. спасибо огромное 5-methoxy
+++Аnn. chim. спасибо огромное 5-methoxy
Последний раз редактировалось LKalvin Сб июл 14, 2012 3:47 pm, всего редактировалось 1 раз.
Re: Аnn. chim. (название статьи и полное название журнала)
У SF Есть такая версия
Title: Ethyleneguanidine and diethyleneguanidine;
Author: Pierron, P.;
Journal: Annali di Chimica Applicata (1919), 11, 316.;
Abstract: CNBr, prepd. according to Scholl (Ber. 29, 1823), readily acts on an equiv. amt. of 10% (CH2NH2)2 soln., forming ethylenegvanidine hydrobromide (a). At room temp. the reaction is complete in 12 hrs.; the soln. when evapd. on the H2O bath deposits, crystals of a, m. 125-6°, hygroscopic, readily sol. in alc. and H2O. If a is treated with Ag2SO4 and the filtrate is evapd. crystals of the sulfate are obtained; flat needles, very sol. in alc. and H2O, not hygroscopic; the nitrate, by double decompn. of a and AgNO3, prisms, m. 115°, sol. in alc. and H2O; the hydrochloride, from the sulfate and BaCl2, m. 120-2°. All these salts when treated with picric acid yield an insol. Picrate, m. 217°; the chloroplatinate is difficultly sol. in H2O. The free base cannot be isolated either by treating the sulfate with Ba(OH)2 or the nitrate in alc. with Ba(OEt)2; evapn. of the filtrate in either case leads to the formation of strongly basic oils which cannot be brought to a definite compn.; they hold H2O so tenaciously that in attempting purification by distn. under reduced pressure quant. transformation into NH3 and ethyleneurea takes place, the latter crystg. The identity of the crystals is established by the m. p. (119°) and analysis. If the oily base is satd. with CO2 the soln. yields the carbonate, deliquescent crystals, m. 162° on rapid heating, very sol. in H2O and alc. If the soln. of this salt is treated with HNO2 (from KNO2 and H2SiF6), left for several days at a low temp., then evapd. on the H2O bath, dried in vacuo and recrystd. from alc. hydantoin, m. 215°, is obtained. If an excess of Ba(OEt)2 is added to a in alc. a white, heavy ppt. very slightly sol. in H2O is formed; it is a Ba deriv. of the base, C6H5N3Ba, sol. in acid. A soln. of the base added to Pb(NO)2 gives a similar ppt. of the Pb compd., insol. even in boiling H2O or concd. HNO3, sol. in HNO3; the corresponding mono-Ag deriv. is slightly yellow, rather unstable and must be washed with dil. HNO3 to be obtained pure; sol. in NH4OH and KCN but not in dil. HNO3. HBr converts it into AgBr and a. By allowing the base to stand for a long while in contact with excess AgNO3, a di-Ag deriv. is obtained, C3H5N3Ag2, insol. in HNO3 and very unstable. In none of these metallic derivs. could the N be detd. correctly, the metal only being detd. In prepg. a there is sometimes found, especially if the (CH2NH2)2 is in excess, the hydrobromide of another base, diethyleneguanidine; it is the principal product if 2 equivs. of (CH2NH2)2 are used. In this case the mixt. is evapd. on the H2O bath until a viscous residue is obtained, adding small amounts of (CH2NH2)2 to replace that lost by evapn., then heated 2 hrs. at 125-30° to remove the excess of diamine, taken up with H2O, treated with HBr to feeble acidity and evapd. to incipient crystn., extd. with boiling alc., which leaves (CH2NH2.HBr)2 as residue; the filtrate on cooling or concn. leaves a salt which, crystd. again from alc., shows the compn. of di-ethyleneguanidine dihydrobromide, crystals, m. 224°, very sol. in H2O, less sol. than a in alc. Yield, 60%. The salt is formed by condensation of monoethyleneguanidine with (CH2NH2)2, NH3 being eliminated. b yields with picric acid a dipicrate, bright yellow needles, m. 203°, difficultly sol. in H2O; b and AgNO3 yield a dinitrate, lamellas, m. 138°, very sol. in H2O, less so in alc., from which it can be crystd. The free base cannot be obtained from the salts, and attempts to isolate it by distn. under reduced pressure led to decompn. as in the case of the monoethyleneguanidine. BzCl acts upon b as on other guanidines, destroying the characteristic grouping and yielding principally dibenzoylethylenediamine.
Title: Ethyleneguanidine and diethyleneguanidine;
Author: Pierron, P.;
Journal: Annali di Chimica Applicata (1919), 11, 316.;
Abstract: CNBr, prepd. according to Scholl (Ber. 29, 1823), readily acts on an equiv. amt. of 10% (CH2NH2)2 soln., forming ethylenegvanidine hydrobromide (a). At room temp. the reaction is complete in 12 hrs.; the soln. when evapd. on the H2O bath deposits, crystals of a, m. 125-6°, hygroscopic, readily sol. in alc. and H2O. If a is treated with Ag2SO4 and the filtrate is evapd. crystals of the sulfate are obtained; flat needles, very sol. in alc. and H2O, not hygroscopic; the nitrate, by double decompn. of a and AgNO3, prisms, m. 115°, sol. in alc. and H2O; the hydrochloride, from the sulfate and BaCl2, m. 120-2°. All these salts when treated with picric acid yield an insol. Picrate, m. 217°; the chloroplatinate is difficultly sol. in H2O. The free base cannot be isolated either by treating the sulfate with Ba(OH)2 or the nitrate in alc. with Ba(OEt)2; evapn. of the filtrate in either case leads to the formation of strongly basic oils which cannot be brought to a definite compn.; they hold H2O so tenaciously that in attempting purification by distn. under reduced pressure quant. transformation into NH3 and ethyleneurea takes place, the latter crystg. The identity of the crystals is established by the m. p. (119°) and analysis. If the oily base is satd. with CO2 the soln. yields the carbonate, deliquescent crystals, m. 162° on rapid heating, very sol. in H2O and alc. If the soln. of this salt is treated with HNO2 (from KNO2 and H2SiF6), left for several days at a low temp., then evapd. on the H2O bath, dried in vacuo and recrystd. from alc. hydantoin, m. 215°, is obtained. If an excess of Ba(OEt)2 is added to a in alc. a white, heavy ppt. very slightly sol. in H2O is formed; it is a Ba deriv. of the base, C6H5N3Ba, sol. in acid. A soln. of the base added to Pb(NO)2 gives a similar ppt. of the Pb compd., insol. even in boiling H2O or concd. HNO3, sol. in HNO3; the corresponding mono-Ag deriv. is slightly yellow, rather unstable and must be washed with dil. HNO3 to be obtained pure; sol. in NH4OH and KCN but not in dil. HNO3. HBr converts it into AgBr and a. By allowing the base to stand for a long while in contact with excess AgNO3, a di-Ag deriv. is obtained, C3H5N3Ag2, insol. in HNO3 and very unstable. In none of these metallic derivs. could the N be detd. correctly, the metal only being detd. In prepg. a there is sometimes found, especially if the (CH2NH2)2 is in excess, the hydrobromide of another base, diethyleneguanidine; it is the principal product if 2 equivs. of (CH2NH2)2 are used. In this case the mixt. is evapd. on the H2O bath until a viscous residue is obtained, adding small amounts of (CH2NH2)2 to replace that lost by evapn., then heated 2 hrs. at 125-30° to remove the excess of diamine, taken up with H2O, treated with HBr to feeble acidity and evapd. to incipient crystn., extd. with boiling alc., which leaves (CH2NH2.HBr)2 as residue; the filtrate on cooling or concn. leaves a salt which, crystd. again from alc., shows the compn. of di-ethyleneguanidine dihydrobromide, crystals, m. 224°, very sol. in H2O, less sol. than a in alc. Yield, 60%. The salt is formed by condensation of monoethyleneguanidine with (CH2NH2)2, NH3 being eliminated. b yields with picric acid a dipicrate, bright yellow needles, m. 203°, difficultly sol. in H2O; b and AgNO3 yield a dinitrate, lamellas, m. 138°, very sol. in H2O, less so in alc., from which it can be crystd. The free base cannot be obtained from the salts, and attempts to isolate it by distn. under reduced pressure led to decompn. as in the case of the monoethyleneguanidine. BzCl acts upon b as on other guanidines, destroying the characteristic grouping and yielding principally dibenzoylethylenediamine.
Re: Аnn. chim. (название статьи и полное название журнала)
У reaxys более лаканичная версия:
Annales de Chimie (Cachan, France), 1919 , vol. <9> 11, p. 361,366, но судя по найденным реакциям - это одно и то же
Annales de Chimie (Cachan, France), 1919 , vol. <9> 11, p. 361,366, но судя по найденным реакциям - это одно и то же
У вас нет необходимых прав для просмотра вложений в этом сообщении.
Re: Аnn. chim. (название статьи и полное название журнала)
А у Victor J. Bauer и S. R. Safir в ссылке 9 вот этой работы вообще указано "P. Pierron, Ann. chim. et phys. [9], 11. 361 (1919)."
А Von WALTER RIED und WALTER MULLER в ссылке 3 считают, что всё-таки должно быть P. PIERRON, Ann. Chemie (9) 11, 361 (1919).
Так что следуя конвенциональной теории истины скорее всего должно быть:
Название: Ethyleneguanidine and diethyleneguanidine
Журнал: Annales de Chimie
А Von WALTER RIED und WALTER MULLER в ссылке 3 считают, что всё-таки должно быть P. PIERRON, Ann. Chemie (9) 11, 361 (1919).
Так что следуя конвенциональной теории истины скорее всего должно быть:
Название: Ethyleneguanidine and diethyleneguanidine
Журнал: Annales de Chimie
У вас нет необходимых прав для просмотра вложений в этом сообщении.
Re: Аnn. chim. (название статьи и полное название журнала)
Спасибо Вам огромное!
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