Absolute configurations and stability of cyclic guanosine mono-adducts with glyoxal and methylglyoxal
✍ Scribed by Congfang Lai; Guangxin Lin; Wenyue Wang; Hai Luo
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 574 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0899-0042
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The structure and stability of different conii$wrations of the (LiBeHs):! dimer are calculA:ed within the Hartrw-Fock -Roothaan method using STOJG and double-zeta basis sets. The structure widt a diboran-like anion [Be2H6]\* and IW\\'O bridge Li+cations is favoured. The four nearest con@urstions are
2,4,6-Triisopropylbenzoates of 1-indanol and 1-tetralol (ee stannane 7 (de Ն 95%) with inversion. The carbanion derived from (S)-1-indanyl N,N-diisopropylcarbamate (9) is 98%) are deprotonated at -78 °C in hexane by sBuLi/TMEDA to give partly configurationally labile organolithium configurationally