Reference

Synthesis and photostability of some N-alkyl-N,N'-diarylformamidines

Synthesis and photostability of some N-alkyl-N,N'-diarylformamidines. Virgilio, Joseph A.Several reagents such as 57834-33-0 is used here.; Heilweil, Emanuel (Res. Dep., Givaudan Corp., Clifton, N. J., USA). Org. Prep. Proced. Int., 10(2), 97-100 (English) 1978. CODEN: OPPIAK. ISSN: 0030-4948. 57834-33-0 is the cas registry number of certain chemical which is used as reagents here. DOCUMENT TYPE: Journal CA Section: 25 (Noncondensed Aromatic Compounds) Section cross-reference(s): 40, 36, 30 Twelve p-RCOC6H4N:CHNR1C6H5-nR2n (I; R = EtO, BuO, NH2; R1 = Me, Et, Bu, n-octyl; R2n = H, 4-MeO, 4-EtO2C, 4-Me2N, 2-MeO, 4-BuO2C, 3,4-Cl2) were prepd. in 25-93% yields (a) by heating p-RCOC6H4N:CHOEt with R1NHC6H5-nR2n at 190° or (b) by heating R2nC6H5-nNR1CHO with POCl3 in CH2ClCH2Cl at 40°, adding p-RCOC6H4NH2, and heating the mixt. at reflux. I are UV absorbers and are useful for the protection of plastics, dyes, and juvenile hormones against UV degrdn. by sunlight (no examples given). It took from 12 to >32 h for I solns. to lose 25% of their UV absorbing properties on irradn. with a 450 W Hanovia lamp. ..

Synthesis and photostability of some N-alkyl-N,N'-diarylformamidines

Synthesis and photostability of some N-alkyl-N,N'-diarylformamidines. Virgilio, Joseph A.Several reagents such as 57834-33-0 is used here.; Heilweil, Emanuel (Res. Dep., Givaudan Corp., Clifton, N. J., USA). Org. Prep. Proced. Int., 10(2), 97-100 (English) 1978. CODEN: OPPIAK. ISSN: 0030-4948. 57834-33-0 is the cas registry number of certain chemical which is used as reagents here. DOCUMENT TYPE: Journal CA Section: 25 (Noncondensed Aromatic Compounds) Section cross-reference(s): 40, 36, 30 Twelve p-RCOC6H4N:CHNR1C6H5-nR2n (I; R = EtO, BuO, NH2; R1 = Me, Et, Bu, n-octyl; R2n = H, 4-MeO, 4-EtO2C, 4-Me2N, 2-MeO, 4-BuO2C, 3,4-Cl2) were prepd. in 25-93% yields (a) by heating p-RCOC6H4N:CHOEt with R1NHC6H5-nR2n at 190° or (b) by heating R2nC6H5-nNR1CHO with POCl3 in CH2ClCH2Cl at 40°, adding p-RCOC6H4NH2, and heating the mixt. at reflux. I are UV absorbers and are useful for the protection of plastics, dyes, and juvenile hormones against UV degrdn. by sunlight (no examples given). It took from 12 to >32 h for I solns. to lose 25% of their UV absorbing properties on irradn. with a 450 W Hanovia lamp. ..