Procyanidin A1

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Procyanidin A1
Chemical structure of procyanidin A1
Names
IUPAC name
(2R,3S,8S,14R,15R)-2,8-bis(3,4-dihydroxyphenyl)-2,3,4,14-tetrahydro-8,14-methanobenzo[7,8][1,3]dioxocino[4,5-h]chromene-3,5,11,13,15-pentaol
Identifiers
103883-03-0 N
Jmol 3D model Interactive image
PubChem 637122
  • O[C@@H]1[C@@H](C2=C(O[C@H](C3=CC(O)=C(O)C=C3)[C@@H](O)C4)C4=C(O)C=C2O5)C6=C(C=C(O)C=C6O)O[C@]15C7=CC(O)=C(O)C=C7
Properties
C30H24O12
Molar mass 576.51 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Procyanidin A1 is a A type proanthocyanidin dimer.

It is an epicatechin-(2β→7,4β→8)-catechin dimer found in Rhododendron spiciferum,[1] in peanut skins[2] and in Ecdysanthera utilis.[3]

Procyanidin B1 can be converted into procyanidin A1 by radical oxidation using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals under neutral conditions.[4]

References

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  1. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ Conversion of procyanidin B-type (catechin dimer) to A-type: evidence for abstraction of C-2 hydrogen in catechin during radical oxidation. Kazunari Kondo, Masaaki Kurihara, Kiyoshi Fukuhara, Takashi Tanaka, Takashi Suzuki, Naoki Miyata and Masatake Toyoda, Tetrahedron Letters, 22 January 2000, Volume 41, Issue 4, Pages 485–488, doi:10.1016/S0040-4039(99)02097-3
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