Anomalous Rotatory Dispersion Curves of N-Thiobenzoyl and N-Phenylthioacetyl alpha-Amino Acids.

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Optical Rotatory Dispersion and Conformation of Polyadenylic and Polyuridylic Acids.

The application of optical rot,atory dispersion to nucleic acids and polynucleotides is fairly recent (l-6). Doty et cd. (2) made a comprehensive study of the optical rotatory dispersion of deoxyribonucleic acid, ribonucleic acid, and complexes of some homopolynucleotides; their results strongly suggested a close relationship between the optical rotations and the secondary structure of nucleic ...

متن کامل

Ruthenium-catalyzed selective N ,N-diallylation- and N ,N ,O-triallylation of free amino acids.

Selective N ,N-diallylation and N ,N, O-triallylation of free amino acids in the presence of catalytic amounts of RuCp*(MeCN)(3)PF(6) is reported. The crucial influence of the solvent makes these allylation reactions selectively possible.

متن کامل

Dynamics of higher order rational difference equation $x_{n+1}=(alpha+beta x_{n})/(A + Bx_{n}+ Cx_{n-k})$

The main goal of this paper is to investigate the periodic character, invariant intervals, oscillation and global stability and other new results of all positive solutions of the equation$$x_{n+1}=frac{alpha+beta x_{n}}{A + Bx_{n}+ Cx_{n-k}},~~ n=0,1,2,ldots,$$where the parameters $alpha$, $beta$, $A$, $B$ and $C$ are positive, and the initial conditions $x_{-k},x_{-k+1},ldots,x_{-1},x_{0}$ are...

متن کامل

A simple method for preparation of N-mono- and N,N-di-alkylated a-amino acids

Reactions of a-amino acids with ketones under hydrogenation conditions using 20% Pd(OH)2/C as the catalyst gave N-mono-alkylated amino acids in high yields. Reductive methylation of N-mono-alkylated amino acids under the same hydrogenation conditions at 50°C afforded N,N-di-alkylated amino acids in excellent yields. This simple method has been used to synthesize N-monoand N,N-di-alkylated amino...

متن کامل

A straightforward synthesis of 5'-peptide oligonucleotide conjugates using N(alpha)-Fmoc-protected amino acids.

[reaction: see text] 5'-Peptide oligonucleotide conjugates were prepared stepwise on a single support using N(alpha)-Fmoc-protected amino acids and unprotected phosphate groups. The method uses commercially available reagents and is successful with most natural amino acids. The simplicity of the method may encourage researchers to prepare new oligonucleotide-peptide conjugates with novel proper...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Acta Chemica Scandinavica

سال: 1962

ISSN: 0904-213X

DOI: 10.3891/acta.chem.scand.16-1071