1) chelated chiral borate ester
螯合手性硼酸酯
1.
In the early 2002, asymmetric catalytic activity of chelated chiral borate esters, which possess three B-0 bonds and one B←N coordination bond, toward borane reduction of prochiral ketones was first observed by our research group.
2002年初,本研究组在国内外首次观察到具有三个硼氧键和一个氮硼配键的螯合手性硼酸酯对前手性羰基化合物硼烷还原显示出不对称催化活性;在0。
3) Chelated titanate
螯合钛酸酯
4) chiral allenylboronic ester
手性丙二烯硼酸酯
1.
Key steps include a condensation of 3-phenylpropanal with chiral allenylboronic esters and the HgO-catalyzed addition of MeOH to the 5-hydroxy-7-phenylhept-2-ynoic acid.
以苯丙醛和手性丙二烯硼酸酯的加成反应及氧化汞催化下甲醇对羟基丙炔酸的加成反应为关键步骤简短完成了Dihydrokawain和Dihydrokawain-5-ol的所有立体异构体的对映选择性全合成。
5) Acidic chelant
酸性螯合剂
6) boric coordination complex
硼螯合物
1.
The synthesis of DFQ-B(OAc)_2) from 1-cyclopropyl-6,7-difluoro-8-methyl-1,4-dihydro-4-oxoquinoline-3-diethyl carboxylate(DFQ-Et) was successful by using the boric coordination complex.
用螯合法把化合物1-环丙基-6,7-二氟-1,4-二氢-8-甲氧基-4-氧代-3-喹啉羧酸乙酯(DFQ-Et)螯合制得硼螯合物(1-环丙基-6,7-二氟-1,4-二氢-8-甲氧基-4-氧代-3-喹啉羧硼二乙酯)[DFQ-B(OAc)2],并考察了此步反应在DMF、DMSO等不同溶媒以及不同温度和不同时间时的反应情况。
补充资料：合手下
1.见"合下手"。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条