Published 1995
| Version v1
Miscellaneous
Betulinic acid spectroscopic studies by NMR
Creators
- 1. Universidade Federal, Rio Grande, RS (Brazil). Dept. de Quimica
- 2. Sao Carlos Univ., SP (Brazil). Dept. de Quimica
Description
HMQC, HMBC, COSY 1 H-1 H, DEPT, COSYHLR were used to assign the hydrogen and carbon chemical shifts of betulinic acid. On base in this study it is proposed to change the δ of the carbons 6, 11, 18, 19 and 26 and of the methyls hydrogen in the literature for betulinic acid, as well as of the compounds where betulinic acid was used as model. It was verified that H-5, δ 0,82, is in position strongly shielded. (author)
Additional details
Additional titles
- Original title (Portuguese)
- Estudos espectroscopicos do acido betulinico por RMN
Publishing Information
- Imprint Title
- Proceedings of the 5. Meeting of the nuclear magnetic resonance users
- Imprint Pagination
- 390 p.
- Journal Page Range
- p. 175-179
Conference
- Title
- 5. Meeting of the nuclear magnetic resonance users
- Original Conference Title
- 5. Encontro de usuarios de ressonancia magnetica nuclear
- Dates
- 9-13 May 1995
- Place
- Angra dos Reis, RJ (Brazil)
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 29052811
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference, Non-conventional Literature, Numerical Data
- Descriptors DEI
- CARBON 13; CHEMICAL SHIFT; EVALUATED DATA; EXPERIMENTAL DATA; METHYL RADICALS; MOLECULAR STRUCTURE; NUCLEAR MAGNETIC RESONANCE; SALICYLIC ACID; STRUCTURAL CHEMICAL ANALYSIS; TREES
- Descriptors DEC
- ALKYL RADICALS; CARBON ISOTOPES; CARBOXYLIC ACIDS; DATA; EVEN-ODD NUCLEI; HYDROXY ACIDS; INFORMATION; ISOTOPES; LIGHT NUCLEI; MAGNETIC RESONANCE; NUCLEI; NUMERICAL DATA; ORGANIC ACIDS; ORGANIC COMPOUNDS; PLANTS; RADICALS; RESONANCE; STABLE ISOTOPES
Optional Information
- Notes
- 6 refs., 1 tab. Imprint:Anais do 5. Encontro de usuarios de ressonancia magnetica nuclear