n******7
发帖数: 5678 | 1 BEIJING — China executed a Japanese man for drug smuggling, the country's
top court announced Tuesday, the first execution of a Japanese citizen since
the countries established relations in 1972.
The Supreme People's Court said Mitsunobu Akano was executed in Liaoning
province after being convicted of trying to smuggle drugs from China,
according to the official Xinhua News Agency.
It gave no other details. Japanese media reports said that Akano was 65 and
that three other Japanese men are on de |
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d******e
发帖数: 1424 | 2 When: 8:30 am – 4:20 pm, Saturday, November 6, 2010
Where: Institute of Americas, UCSD
Registration: https://www.123signup.com/register?id=mhsrr
$20 for early birds (by Oct. 31), $30 before the end of Nov. 3, $50 for
onsite registration, students and postdocs $10 off (The fees include program
brochure, continental breakfast, coffee break, lunch and onsite reception).
Online registration closes on Nov. 3.
8:30 am Breakfast and Registration
9:00 am Opening Remarks
... 阅读全帖 |
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n*******n
发帖数: 12 | 4 mitsunobu won't work because of the steric hindrance. But you can still try
it.
I think the induction came from the bata-keto functionalily. Try to use L-
selectride or Bu4NBH4. These two reagents usually deliver opposite
selectivity as NaBH4 does. |
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a******w
发帖数: 898 | 5 多谢建议，mitsunobu 对位阻很敏感。这个二级醇位阻比三级醇位阻都大。
另外我担心L-selectride会不会还原内脂？ 这个是很强的还原剂。 |
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l**u
发帖数: 132 | 6 做mitsunobu反应后得到很多三苯基氧磷，极性和产物很近，过柱子除不干净。试过乙
醚洗，但好多产物也洗没了。
有什么方法可以把Ph3PO洗到水相么？ |
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n***l
发帖数: 143 | 7 how dangerous it is to use sodium azide on 10 gram scale?
I need to transform an OH to a NH2 group and do not want to do the mess
workup of Mitsunobu reaction. |
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j********r
发帖数: 99 | 8 你做烯丙基化的化不妨试试mitsunobu rxn 省得你保护来脱保护去的 条件合适对我话
非常高效
★ 发自iPhone App: ChineseWeb 7.8 |
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g*****n
发帖数: 2588 | 9 Mitsunobu合成aryl-alkyl醚常见，合成alkyl-alkyl醚限于成环等特殊情况。alkyl-
allyl醚不太成立，我前面写错删了。 |
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s*****l
发帖数: 7 | 10 I would suggest Mitsunobu condition as it usually works well for phenol/
carboxylic acid. In some cases only this condition is effective. |
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