Benzoic Acid → 1-Piperazinecarboxylic acid, 4-benzoyl-, 1,1-diMethylethyl ester

HRID 1622324ノート

反応式

HRID 1622324 の反応式
[C:1]([N:8]1[CH2:13][CH2:12][NH:11][CH2:10][CH2:9]1)([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2].[C:14](O)(=[O:21])[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>CN(C=O)C>[C:14]([N:11]1[CH2:10][CH2:9][N:8]([C:1]([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2])[CH2:13][CH2:12]1)(=[O:21])[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1

参加物

6

反応物 4

HCID 243Benzoic AcidHCID 81531DiisopropylethylamineHCID 143452tert-Butyl piperazine-1-carboxylateHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)

生成物 1

HCID 185197561-Piperazinecarboxylic acid, 4-benzoyl-, 1,1-diMethylethyl ester収率 98%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

General procedure A was followed using 1-Boc-piperazine (50 mg, 0.27 mmol), benzoic acid (43 mg, 0.35 mmol), HATU (0.14 g, 0.35 mmol), DIPEA (0.23 ml 1.4 mmol) and DMF (2 mL) to furnish the title compound as a beige solid (75 mg, 98%), m.p. 105-107° C.; umax (CHCl3)/cm−1 3011, 2930, 2866, 1691, 1626, 1421, 1249, 1158; m/z (ESI) C16H22N2NaO3 requires 313.1523, found [M+Na]+ 313.1528.

出典と根拠

ORDレコード
ord-e95501e722794bac974c453eb37e2331
出典データセット
uspto-grants-2014_07
特許番号
US08778925B2

反応ノート

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