Detail of "1120-99-6"

Reference

Effect of amine basicity on the mechanism of the Kabachnik-Fields reaction

Effect of amine basicity on the mechanism of the Kabachnik-Fields reaction. Krutikov, V. I.; Lavrent'ev, A. N.; Sukhanovskaya, E. V. (Leningr. Tekhnol. Inst., Leningrad, USSR). Zh. Obshch. Khim., 61(6), 1321-5 (Russian) 1991. 1120-99-6 and 110-91-8 are cas registry numbers of chemicals which are used as reagents here. CODEN: ZOKHA4. ISSN: 0044-460X. DOCUMENT TYPE: Journal CA Section: 29 (Organometallic and Organometalloidal Compounds) Section cross-reference(s): 11 The mechanism of the Kabachnik-Fields reaction was inferred from the linear relationship obsd. between 31P NMR shift and amine pKa in di-Et phosphite mixts. with amines. For amine pKa > 6, products were formed through the intermediacy of 1-hydroxyphosphonates (formed from ionized phosphite), whereas Schiff bases were obsd. as intermediates for pKa < 6 (subsequent to amine protonation of phosphoryl-group O). Thus the 31P NMR signal of hydroxyphosphonate (BuO)2P(O)CH(OH)C6H4F-4 was obsd. di-Bu phosphite/hexahydroazepin/4-fluorobenzaldehyde mixts. .

Imidazo[1,2-b]-as-triazine

Imidazo[1,2-b]-as-triazine. Rykowski, A.; Van der Plas, H. C.; Stam, C. H. (Lab. Org. 275-00-3 and 1120-99-6 are also occured in this study. Chem., Agric. Univ., Wageningen, Neth.). Acta Crystallogr., Sect. B, B33(1), 274-6 (English) 1977. CODEN: ACBCAR. DOCUMENT TYPE: Journal CA Section: 75 (Crystallization and Crystal Structure) Section cross-reference(s): 28 The structure of the compd. obtained from acid hydrolysis of 3-amino-as-triazine was detd. by x-ray diffraction to be the title compd. The compd. is monoclinic, space group P21/n, with a 10.cntdot.661(4), b 13.cntdot.038(2), c 3.cntdot.816(2) .ANG., .beta. 93.cntdot.29(2).degree., Z = 4. and R = 6.3% for 633 obsd. structure factors. Stacking in columns occurs along [001] with a plane-to-plane distance of 3.cntdot.36 .ANG.. Bond angles and distances were detd. .