Correction. Synthesis and Reactions of Monosubstituted Triptych-Boroxazolidines

Abstract

Page 132. The authors wish to acknowledge the prior report describing 2,4'-diphenylbiphenyl, m.p. 118°, by Dale [Acta Chemica Scand., 11, 650 (1957)]. Comparison of the ultraviolet and infrared data for our product and those for Dale's product and for terphenyl, a possible by-product of the reaction used in our synthesis, indicate that our product is a mixture of terphenyl and 2,4'-diphenylbiphenyl. The authors appreciate the helpful comments of Professor D. H. Hey and Dr. J. C. Cade in re-interpreting these data.

Dibasic Derivatives of Phenylcarbamic Acid against Mycobacterial Strains: Old Drugs and New Tricks?

“…The addition of pyrrolidine or azepane to 7′ in anhydrous propan-2-ol (2-PrOH) provided 1-(dipropylamino)-3-pyrrolidin-1-ylpropan-2-ol ( 8′a ) or 1-azepan-1-yl-3-(dipropylamino)-propan-2-ol ( 8′b ) [ 29 ].…”

“…Presently analyzed 1-[2-[({[2-/3-(alkoxy)phenyl]amino}carbonyl)oxy]-3-(dipropylammonio)- propyl]pyrrolidinium oxalates ( 1a – d )/dichlorides ( 1e – h ) as well as 1-[2-[({[2-/3-(alkoxy)phenyl]- amino}carbonyl)oxy]-3-(dipropylammonio)propyl]azepanium oxalates ( 1i – l )/dichlorides ( 1m – p ; alkoxy = butoxy to heptyloxy) were prepared by multi step pathways ( Scheme 1 ) using 2-aminophenol ( 1a ) and 3-aminophenol ( 1b ), respectively, as starting compounds [ 21 , 27 , 28 , 29 ].…”

“…Procedures for preparation of reaction intermediates 2′a , 2′b , 3′a – h , 4′a – h , 5′a – h , 7′ , 8′a , 8′b , 9′a – p and final molecules 1a – p were originally published in research papers [ 21 , 27 , 28 , 29 ] and are provided in Supplementary Materials . In addition, HPLC-HR-MS spectral characterizations of the compounds 9′a – p are included as well.…”