+++One paper from Russian Journal of Organic Chemistry 1993 please

[denglh001]

Makin, S. M.; Mikerin, I. E.; Dobretsova, E. K.; Shavrygina, O. A.; Russian Journal of Organic Chemistry; vol. 29;
nb. 4; (1993); p. 572 - 575.

Thanks!

[Ol.Lo]

Interested in an article in Russian?

[denglh001]

Interested in an article in Russian?

Yes, please!

[Ol.Lo]

Добрый день!
Для Вас

[denglh001]

Добрый день!
Для Вас

Thank you very much!

I just want to know the experimental procedure for the reaction from VI to VII, but I cannot read Russian, could anyone please kindly translate for me? Many thanks!

[young]

107 g of VI was dissolved in a mixture of 200 mL of anhydrous chloroform and 107 mL of conc. sulfuric acid.
With stirring solution of 43 g of 98% nitric acid in 50 mL of chloroform was added dropwise at 0 C.
Reaction mixture was stirred at 0 C for another 2 hrs, then washed with water, then with 30% aq. NaOH, again with water, and dried over CaCl2.
Solvent was distilled off in vacuum. Obtained 119 g (90.7%) of VII with mp 104-105 C. Found: N 5.52%, Br 32.31%. Calculated: N 5.74%, Br 32.74%.