+++Ещё один Chem.Abstr.

[LKalvin]

И если Вас не затруднит помогите ознакомиться с ещё одним абстрактом:

Haginiwa; Yakugaku Zasshi; vol. 73; (1953); p. 1316.

Chem.Abstr.; (1955); p. 299

Заранее Вам очень признателен и благодарен!

[Arkadii_Tarasevych]

I guess not everybody knows what means "Yakugaku Zasshi" (The Pharmaceutical Society of Japan). As for me I thought it is a name of one of the authors. However it is the journal title. That was the problem.

Chemical properties of oxazoles and benzoxazoles. III. Chemical properties of benzoxazoles Full Text By Haginiwa, Joju
From Yakugaku Zasshi (1953), 73, 1316-18. | Language: Unavailable, Database: CAPLUS
Nitration of 1 g. I with 3 ml. concd. H2SO4 and 1.5 ml. HNO3 (d. 1.54) 10 min. at -10° and pouring the product on ice give the 6-NO2 deriv. (VII) of I, insol. in nearly all solvents; the structure of VII is proved by heating with 5 vols. 15% HCl to give 5,2-O2N(H2N)C6H3OH (VIII), m. 195-8° (decompn.), and a small amt. of 2,4-H2N(O2N)C6H3OH, m. 88-90°. m-C6H4(OH)2 (33 g.) in 80 ml. EtOH treated with 24 g. KOH in a small amt. of alc. at 0°, and 39 g. AmONO added, then 20% HCl portionwise, yielded 90% 6,1,3-ONC6H3(OH)2 (IX); 40 g. IX in 100 ml. alc. treated with 150 g. SnCl2 in 300 ml. 15% HCl, the product dild. with 6 vols. of water, H2S passed in, the SnS removed, and the soln. concd. gave 42 g. 6,1,3-H2NC6H3(OH)2.HCl (X); 20 g. X and 180 g. Ac2O boiled 1 hr. and the product distd. gave 10-14 g. 6-AcO deriv. (XI) of III, b. 278-80°, m. 55°; sapon. of 10 g. XI with 60 ml. 10% alc. KOH yielded the 6-KO analog, which, taken up with water and CO2 passed in, gave 7 g. 2-methyl-6-hydroxybenzoxazole (XII). XII (5 g.), 3.5 g. K2CO3, and 5 g. CH2:CHCH2Br in 50 ml. Me2CO refluxed 6 hrs., the Me2CO removed, the residue extd. with Et2O, and the ext. washed with 5% NaOH and distd. gave 5 g. 6-CH2:CHCH2O analog (XIII) of XII, b20 163-4° (picrate, m. 142°). Heating XIII in a sealed tube 15 min. at 230-5°, taking up in Et2O-petr. ether (1:1), and washing with 10% NaOH yielded 90% C11H11NO2 (XIV), needles, m. 160°; 3 g. XIV, 2 g. K2CO3, and 2 g. C3H5Br in 20 ml. Me2CO refluxed 6 hrs., the Me2CO removed, and the residue treated as in the prepn. of XIII gave 3.3 g. 2-methyl-6-hydroxy-7(?)-allylbenzoxazole allyl ether (XV), b15 172-3° (picrate, m. 112°). XV (2 g.) heated 15 min. at 230-5° in a sealed tube and the product recrystd. from C6H6-petr. ether gave 1.7 g. 2-methyl-6-hydroxy-5,7-diallyl-benzoxazole, prisms, m. 128°.