Reference

Aldol-type addition of hydrocinnamic acid esters to benzylideneaniline

Aldol-type addition of hydrocinnamic acid esters to benzylideneaniline. Simova, E. (Sofia Univ., Sofia, Bulg.). Dokl.There are some reagents with their cas registry numbers 103-25-3 and 62083-29-8 are used in this study. Bolg. Akad. Nauk, 29(9), 1293-5 (English) 1976. CODEN: DBANAD. DOCUMENT TYPE: Journal CA Section: 25 (Noncondensed Aromatic Compounds) Section cross-reference(s): 27 Reaction of PhN:CHPh with PhCH2CH2CO2R [R = Me, Me2CH, Me3C (I)] in C6H6 or Et2O at room temp. in the presence of AlCl3 or NaNH2 gave (.+-.-)-erythro-PhNHCHPhCH(CH2Ph)CO2R (R as before). In the reaction of PhN:CHPh with I azetidinone II was also formed. .

The chemistry of small ring compounds

The chemistry of small ring compounds. Part 36. CIDNP effects during the oxidation of substituted cyclopropanone methyl hemiacetals by di-tert-butyl diperoxyoxalate. Bakker, B. H.; Bok, T. Reints; Steinberg, H. 103-25-3 and 1876-22-8 are also occured in this study.; De Boer, T. J. (Lab. Org. Chem., Univ. Amsterdam, Amsterdam, Neth.). Recl. Trav. Chim. Pays-Bas, 96(2), 31-4 (English) 1977. CODEN: RTCPA3. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) The reaction of tetramethylcyclopropanone Me hemiacetal and phenylcyclopropanone Me hemiacetal with di-tert-Bu diperoxyoxalate (TBPO) was studied in connection with obsd. CIDNP effects. Oxidn. of these hemiacetals by tert-butoxyl radicals (generated from TBPO) gives rise to the ring-opened radicals .cntdot.CMe2CMe2CO2Me (I) and .cntdot.CHPhCH2CO2Me (II), resp. The existence of radical I is clearly demonstrated in benzene soln. by the obsd. A/E multiplet effect for the disproportionation products Me2CHCMe2CO2Me and CH2:CMeCMe2CO2Me, formed from 2 radicals I in a radical pair. In CDCl3 soln., however, emissions are found for the unsatd. ester, CHCl3, and CHDCl2, and an A/E signal for the satd. ester. The chlorinated products are formed from the .cntdot.CCl3 and .cntdot.CDCl2 radicals and a H donor. The benzylic radical II gives rise to an A/E multiplet effect (in benzene) for the combination product MeO2CCH2(CHPh)2CH2CO2Me and the disproportionation product PhCH:CHCO2Me. .