Ueber das 1, 3, 3′-Trioxyflavon

Ueber Das Verschwinden Der Θ-functionen

ارزیابی ویژگی‌های روان‌سنجی نسخه فارسی سومین ویرایش پرسشنامه نگرش به دیابت (IR-DAS-3)

Cover Vol.3, No.1, April 2006

1-(3-Hy­droxy­phen­yl)-3-(3-meth­oxy­phenyl)thio­urea

In the title compound, C(14)H(14)N(2)O(2)S, the dihedral angles between the thio-urea group and the methoxyphenyl and hydroxyphenyl rings are 61.91 (4) and 76.90 (4)°, respectively. The benzene rings are twisted with respect to each other, making a dihedral angle of 71.03 (4)°. The H atoms of the thio-urea NH groups are positioned anti to each other. In the crystal, inter-molecular N-H⋯S, N-H⋯O...

سنتز 1، 3، 5، 7-تترا استیل-1، 3، 5، 7-تترا آزاسیکلواکتان (TAT) از طریق استیل‌دار کردن 3، 7-دی‌استیل-1، 3، 5، 7-تترا آزا بی‌سیکلو-[3.3.1]-نونان (DAPT)

In this study, a novel method to synthesis of 1,3,5,7-tetraacetyl octahydro-1,3,5,7-tetraazocine or 1,3,5,7-tetraacetyl-1,3,5,7-tetraazacyclooctane (TAT) was used through acetolysis of 3,7-diacetyl-1,3,5,7-tetraazabicyclo-[3.3.1]nonane (DAPT) with acetic anhydride in the presence of sodium acetate as catalyst. Optimized reaction conditions were obtained by changing temperature, time and startin...