Novel Convenient Synthesis of <sup>10</sup>B-Enriched Sodium Borohydride
作者:Alexander V. Safronov、Satish S. Jalisatgi、M. Frederick Hawthorne
DOI:10.1021/acs.inorgchem.6b01002
日期:2016.6.6
A convenient and efficient synthesis of 10B-enriched sodium borohydride [Na10BH4] from commercially available 10B-enriched boric acid [10B(OH)3] is described. The reaction sequence 10B(OH)3 → 10B(On-Bu)3 → 10BH3·Et3N → Na10BH4 afforded the product in 60–80% yield. The reaction was successfully scaled to hundreds of gram per run.
COMPOUND FOR PREPARING 4-(10B)BORONO-L-PHENYLALANINE
申请人:Taiwan Biotech Co., Ltd.
公开号:US20130331599A1
公开(公告)日:2013-12-12
Provided is a compound of the following formula (I) for preparing 4-(
10
B)borono-L-phenylalnine:
wherein R group represents a protecting group and is selected from the group consisting of: tert-butoxycarbonyl (Boc) group, trityl (Trt) group, 3,5-dimethoxyphenylisopropoxycarbonyl(Ddz) group, 2-(4-Biphenyl)isopropoxycarbonyl (Bpoc) group, and 2-nitrophenylsulfenyl (Nps) group, and the compound has a
10
B purity higher than or equal to 98% and an enantiomeric excess higher than or equal to 99%.
A New Synthetic Route to Boron-10 Enriched Pentaborane(9) from Boric Acid and Its Conversion to <i>anti</i>-<sup>10</sup>B<sub>18</sub>H<sub>22</sub>
作者:Luqman Adams、Sumathy N. Hosmane、Jamey E. Eklund、Jianhui Wang、Narayan S. Hosmane
DOI:10.1021/ja026477n
日期:2002.6.1
Boron-10 enriched boric acid, H310BO3, was converted to the corresponding sodium borohydride, Na10BH4, in essentially quantitative yields, by using slightly modified literature methods involving the formation of butyl borate, (n-OBu)310B, first and then reacting it with NaH in mineral oil. The oxidation reaction of Na10BH4 with I2 in diglyme and subsequent addition/purification in dioxane gave Na[10B3H8]0
[EN] METHOD FOR PRODUCING 4-BORONO-L-PHENYLALANINE AND INTERMEDIATE THEREOF<br/>[FR] PROCÉDÉ DE PRODUCTION DE 4-BORONO-L-PHÉNYLALANINE ET D'UN INTERMÉDIAIRE DE CELUI-CI<br/>[JA] 4-ボロノ-L-フェニルアラニン及びその中間体の製造方法