*Correspondence: Hatsuo Ishida, Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106, USA e-mail: [email protected] High-performance thermosets via amide–imide functional benzoxazine resins as precursors have been synthesized.The structures of synthesized monomers have been confirmed by 1H NMR and Fourier transform infrared. Among these two benz...

We investigated the normal mode composition and the aqueous solvation dependence of the primary amide vibrations of propanamide. Infrared, normal Raman, and UV resonance Raman (UVRR) spectroscopy were applied in conjunction with density functional theory (DFT) to assign the vibrations of crystalline propanamide. We examined the aqueous solvation dependence of the primary amide UVRR bands by mea...

We present an improved technique for estimating protein secondary structure content from amide I and amide III band infrared spectra. This technique combines the superposition of reference spectra of pure secondary structure elements with simultaneous aromatic side chain, water vapor, and solvent background subtraction. Previous attempts to generate structural reference spectra from a basis set...

In the preceding paper (Kuhlman, J. R., C. Li, and R. L. Calabrese (1985) J. Neurosci. 5: 2301-2309) FMRF-amide-like immunoreactivity was localized to a specific set of neurons in the leech. Three types of these neurons are involved in controlling the animal's heartbeat: HE motor neurons and HA modulatory neurons which directly innervate the hearts, and the swim-initiating interneurons (cells 2...

T h e normal modes have been calculated for p-turns of types I, 11, 111, 1’, 11’, and 111’. The complete se t of frequencies is given for the first three structures; only the amide I, 11, and I l l modes are given for the latter three structures. Calculations have been done for structures with standard dihedral angles, as well as for structures whose dihedral angles differ from these by amounts...

The title compound, 8,18-dithia-2,6-diaza-13(1,4)-piperidina-1(1,2),4(1,3),7(1,2)-tribenzenaoctadecaphane-10,15-diyne-3,6-dione, C32H30N4O2S2, is composed of a relatively planar bis-(2-mercaptophen-yl)isophthalamide unit linked to a bridging 1,4-di(but-2-yn-1-yl)piperazine unit, forming a macrocycle. The isophthalamide ring is inclined to the outer mercaptophenyl rings by 8.18 (11) and 5.59 (10...

DNA catalysts (deoxyribozymes) for a variety of reactions have been identified by in vitro selection. However, for certain reactions this identification has not been achieved. One important example is DNA-catalyzed amide hydrolysis, for which a previous selection experiment instead led to DNA-catalyzed DNA phosphodiester hydrolysis. Subsequent efforts in which the selection strategy deliberatel...

Methods for conversion of the lignin β-O-4 models into amide derivatives and phenols have been developed, which is achieved via chemo-selective oxidation of the secondary benzylic alcohol and subsequent Cu-catalyzed aerobic amide bond formation.

In the title compound, C(20)H(27)BrN(2)O(2), mol-ecules are linked into one-dimensional chains through (amide)N-H⋯O=C(amide) inter-molecular hydrogen bonds.