25347-94-8Relevant articles and documents
An empirical estimation of the interactions Hδ+...Cl-. The crystal and molecular structure of the 1-methyl-2-tert-butylamino-4-isopropyl-5(4H)-imidazolone hydrochloride
Krygowski,Grabowski,Anulewicz-Ostrowska,Izdebski,Fiertek
, p. 129 - 135 (2007/10/03)
-
Electronic and Steric Effects of Alkyl Group on Denitrosation of 3-Alkyl-1-methyl-1-nitrosothioureas
Isobe, Masayoshi
, p. 2844 - 2848 (2007/10/02)
A series of 3-alkyl-1-methyl-1-nitrosothioureas with R=CH3, C2H5, cyclo-C6H11 (3), (CH3)2CH (4), C2H5(CH3)CH, and (CH3)3C were synthesized and their rates of acid catalyzes (pHH:kD is 1.25 for 4.Except 3, a linear plot of log kR/kMe for the denitrosation of RNHCSN(NO)CH3 vs. ?* provides ρ*=-0.98(r=-0.997).The significant factor affecting the rate determining step of the denitrosation of these N-nitrosothioureas at pH 4.6 is the electronic effect of the substituent at the N3 position.
THE SYNTHESIS OF ANTINEOPLASTIC AGENTS. XXXII. N-NITROSOUREAS. I.
JOHNSTON,MCCALEB,MONTGOMERY
, p. 669 - 681 (2007/10/04)
-