Methyl 2-(8-(nitromethyl)-1,4-dioxaspiro[4.5]decan-8-yl)acetate → 1,4-Dioxa-10-azadispiro[4.2.4^{8}.2^{5}]tetradecan-11-one

HRID 1694520ノート

反応式

HRID 1694520 の反応式
C[O:2][C:3](=O)[CH2:4][C:5]1([CH2:15][N+:16]([O-])=O)[CH2:14][CH2:13][C:8]2([O:12][CH2:11][CH2:10][O:9]2)[CH2:7][CH2:6]1>CO.[Ni]>[O:12]1[C:8]2([CH2:13][CH2:14][C:5]3([CH2:4][C:3](=[O:2])[NH:16][CH2:15]3)[CH2:6][CH2:7]2)[O:9][CH2:10][CH2:11]1

参加物

4

反応物 1

HCID 57795518Methyl 2-(8-(nitromethyl)-1,4-dioxaspiro[4.5]decan-8-yl)acetate

生成物 1

HCID 577954141,4-Dioxa-10-azadispiro[4.2.4^{8}.2^{5}]tetradecan-11-one収率 96%

試薬・触媒・溶媒 2

HCID 935Nickel触媒HCID 887Methanol溶媒

実験手順

A solution of (8-nitromethyl-1,4-dioxa-spiro[4.5]dec-8-yl)-acetic acid methyl ester (5.34 g, 19.5 mmol) in 35 mL of methanol was purged with nitrogen. A portion of about 430 mg of Raney 2800 nickel was added. The reaction mixture was purged with hydrogen and a positive pressure of hydrogen was maintained overnight using a balloon. Then, the final mixture was purged with nitrogen and filtered through a pad of celite washing with methanol. The filtrate was concentrated to afford 1,4-dioxa-10-aza-dispiro[4.2.4.2]tetradecan-11-one (3.95 g, 96%) as a white solid.

後処理

  1. customThe reaction mixture was purged with hydrogen
  2. temperaturea positive pressure of hydrogen was maintained overnight
  3. customThen, the final mixture was purged with nitrogen
  4. filtrationfiltered through a pad of celite
  5. washwashing with methanol
  6. concentrationThe filtrate was concentrated

出典と根拠

ORDレコード
ord-4033ab7ac1d54c689a5d41bb60034305
出典データセット
uspto-grants-2012_04
特許番号
US08158675B2

反応ノート

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