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Formaldehyde → (R)-1-(4-Bromo-2-butynyl)-3-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-2-pyrrolidinone

HRID 1707964
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HRID 1707964 반응식
[CH3:1][C:2]([Si:5]([CH3:17])([CH3:16])[O:6][C@@H:7]1[CH2:11][CH2:10][N:9]([CH2:12][C:13]#[CH:14])[C:8]1=[O:15])([CH3:4])[CH3:3].C(NCC)C.C=O.N#[C:26][Br:27]>C(OCC)C.O1CCOCC1.C(O)(=O)C>[Br:27][CH2:26][C:14]#[C:13][CH2:12][N:9]1[CH2:10][CH2:11][C@@H:7]([O:6][Si:5]([C:2]([CH3:1])([CH3:3])[CH3:4])([CH3:17])[CH3:16])[C:8]1=[O:15]
참가 물질실험 절차출처 및 근거반응 노트

참가 물질

8

반응물 4

HCID 712FormaldehydeHCID 8021DiethylamineHCID 10476Cyanogen BromideHCID 15086768HCID 15086768, 화합물

생성물 1

HCID 54240230(R)-1-(4-Bromo-2-butynyl)-3-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-2-pyrrolidinone수율 17.9%

시약·촉매·용매 3

HCID 176Acetic Acid
용매
HCID 3283Diethyl Ether용매
HCID 312751,4-Dioxane용매

실험 절차

The title compound is prepared by the procedure of Example 23 using 10.7 g of (R)-3-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-1-propargyl-2-pyrrolidinone, 8.7 ml of diethylamine, 3.2 g of paraformaldehyde, 0.10 g of cuprous chloride, 15 ml of acetic acid and 100 ml of dioxane. Ten grams of the diamine intermediate is treated with 3.5 g of cyanogen bromide in 150 ml of diethyl ether to give 2.05 g of the desired compound as a yellow oil. [α]D26° =+26° (methylene chloride).

출처 및 근거

ORD 기록
ord-fa1024f2471d4584807cfe702694d84d
출처 데이터셋
uspto-grants-1994_10
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05356885

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