Chemistry of Heterocyclic Compounds p. 1034 - 1039 (1985)
Update date:2022-09-26
Topics:
Dovgilevich, A. V.
Zelenin, K. N.
Espenbetov, A. A.
Struchkov, Yu. T.
Bezhan, I. P.
et al.
It was shown by x-ray diffraction analysis and PMR spectroscopy that 1-acyl-5-hydroxy- and -5-hydrazinopyrazolidines have a conformation with an axial orientation of the functional group attached to the C(5) atom.The 1-salicylyl derivatives constitute an exception: in methanol solutions they exist in a conformation with an equatorial hydroxy group, whereas in dimethylformamide (DMF) the ring undergoes partial opening to give the corresponding β-hydrazido aldehydes.
View MoreDalian RSD International Trade Co.,Ltd.(expird)
Contact:86-22-60875058 58610575
Address:Wantong International Areas, Hongqiao District, Tianjin, China.China
Improve Medical Technology(Nanxiong) Co., Ltd
Contact:86-751-3836997
Address:No.33, Pingan First Road, Fine Chemical Industry Base, Nanxiong City, Shaoguan, Guangdong, China
Zhuhai Rundu Pharmaceutical co.,Ltd
Contact:+86-756-7630755
Address:No.6,North Airport Road,Sanzao Town,Jinwan District
VanderArk International Limited
Contact:86-10-82437576
Address:Qing He
Synchem Pharma Co.,Ltd(expird)
Contact:+0086-21-61984905-1
Address:Building 60,Zimian Park, LongYang industrial Area, 1515Nong，Yuandong Road Fengxian District, Shanghai ,China
Doi:10.1021/jo01116a612
(1956)Doi:10.1016/S0040-4039(00)94983-9
(1985)Doi:10.1021/jf800651z
(2008)Doi:10.1002/chem.200900231
(2009)Doi:10.1002/poc.4171
(2021)Doi:10.1016/j.carres.2008.05.004
(2008)
