552846-17-0
中文名稱
1-Boc-吡唑-4-硼酸頻哪醇酯
英文名稱
1-Boc-pyrazole-4-boronic acid pinacol ester
CAS
552846-17-0
分子式
C14H25BN2O5
MDL 編號(hào)
MFCD05663873
分子量
312.17
MOL 文件
552846-17-0.mol
更新日期
2024/11/25 17:04:53
552846-17-0 結(jié)構(gòu)式
基本信息
中文別名
1-Boc-吡唑-4-硼酸頻哪醇酯1-叔丁氧羰基-吡唑-4-硼酸頻哪醇酯
英文別名
1-BOC-4-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)PYRAZOLE1-TERT-BUTOXYCARBONYL-1H-PYRAZOLE-4-BORONIC ACID, PINACOL ESTER
1-TERT-BUTOXYCARBONYL-4-1H-PYRAZOLEBORONIC ACID, PINACOL ESTER
4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylic acid tert-butyl ester
4-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-PYRAZOLE-1-CARBOXYLIC ACID TERT-BUTYL ESTER
N-BOC-PYRAZOLE-4-BORONIC ACID PINACOL ESTER
1-BOC-PYRAZOLE-4-BORONIC ACID PINACOL ESTER, 97%
1-TERT-BUTOXYCARBONYL-4-1H-PYRAZOLBORONIC ACID PINACOL ESTER
N-Boc-pyrazole-4-boronic acid pinaxcol ester
1-BOC- 4-PYRAZOLEBORONIC ACID PINACOL ESTER
1-BOC-1H-PYRAZOLE-4-BORONIC ACID PINACOL ESTER
1-Boc-4-pyrazoleboronic acid pinacol ester, 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-Boc-pyrazole, tert-Butyl 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-pyrazolecarboxylate
TERT-BUTYL 4-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1H-PYRAZOLE CARBOX., 97%
1-tert-Butoxycarbonyl-4-1H-pyrazoleboronic acid
4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylic acid tert-butyl e
所屬類別
化學(xué)試劑：硼酸物理化學(xué)性質(zhì)
熔點(diǎn)82-86 °C(lit.)
沸點(diǎn)387.9±34.0 °C(Predicted)
密度1.09±0.1 g/cm3(Predicted)
儲(chǔ)存條件Refrigerator (+4°C)
溶解度溶于甲醇
酸度系數(shù)(pKa)-1.20±0.12(Predicted)
形態(tài)結(jié)晶粉末
顏色白色至米色
水溶解性insoluble
水溶解性不溶
安全數(shù)據(jù)
常見問題列表
性質(zhì)
1-Boc-吡唑-4-硼酸頻哪醇酯在常溫常壓下呈白色或者米白色固體狀。用途
1-Boc-吡唑-4-硼酸頻哪醇酯屬于吡唑類衍生物，主要用作藥物分子和生物活性分子的合成中間體。在合成轉(zhuǎn)化中，吡唑環(huán)上的硼單元是一個(gè)非常實(shí)用的官能團(tuán)轉(zhuǎn)化前體，硼單元可以很容易地轉(zhuǎn)化為氮原子，也可以很容易被氧化成羥基，或者通過Suzuki偶聯(lián)反應(yīng)在硼單元的位置連接上一個(gè)芳基或者烷基基團(tuán)。合成方法
將氯(1,5-環(huán)辛二烯)(1,1'-菲羅啉)銥四氫呋喃加合物(5.8 mg, 0.01 mmol, 0.5 mol%)和聯(lián)硼酸頻哪醇酯加入到一個(gè)敞口的反應(yīng)瓶中，用一個(gè)帶隔膜的螺旋蓋密封小瓶，通過在真空下進(jìn)行三次循環(huán)抽真空來對(duì)小瓶進(jìn)行氮?dú)庵脫Q。在第二個(gè)燒瓶中制備頻那醇硼烷（0.050 mL，44.1 mg，0.344 mmol）在四氫呋喃（50 mL，0.0067 M）中的儲(chǔ)備溶液。將儲(chǔ)備溶液（1.4毫升，1當(dāng)量的頻那醇硼烷）注射到氯（1,5-環(huán)辛二烯）（1,1'-菲羅啉）銥四氫呋喃加合物和硼酸頻哪醇酯的混合體系中去，將所得的反應(yīng)混合物加熱到65度反應(yīng)1小時(shí)，直到形成暗紅色溶液。將0.336克1H-吡唑-1-甲酸叔丁酯直接加入暗紅色溶液中，讓其反應(yīng)若干個(gè)小時(shí)，通過GC、GC-MS和TLC監(jiān)測(cè)反應(yīng)的進(jìn)展。當(dāng)反應(yīng)完成后，冷卻小瓶，通過硅藻土過濾除去固體沉淀，得到的濾液真空下蒸發(fā)旋干，用二氯甲烷溶解所得的殘余物，通過柱色譜法（0:100-1:1 乙酸乙酯和正己烷）提純分離殘余物即可得到目標(biāo)產(chǎn)物1-Boc-吡唑-4-硼酸頻哪醇酯。
圖 1-Boc-吡唑-4-硼酸頻哪醇酯的合成路線
1-Boc-吡唑-4-硼酸頻哪醇酯價(jià)格(試劑級(jí))
| 報(bào)價(jià)日期 | 產(chǎn)品編號(hào) | 產(chǎn)品名稱 | CAS號(hào) | 包裝 | 價(jià)格 |
| 2024/11/11 | XW5528461702 | 1-BOC-吡唑-4-硼酸頻哪醇酯 1-(tert-butoxycarbonyl)pyrazolyl-4-boronic acid pinacol ester;1-boc-pyrazolyl-4-boronic acid pinacol ester;1-(tert-butoxycarbonyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole;1-boc-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole;2-(1-boc-4-pyrazolyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane;2-(1-tert-butoxycarbonyl-4-pyrazolyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane;tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole-1-carboxylate;4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1h-pyrazole-1-carboxylic acid tert-butyl ester | 552846-17-0 | 5G | 58元 |
| 2024/11/11 | XW5528461701 | 1-BOC-吡唑-4-硼酸頻哪醇酯 1-(tert-butoxycarbonyl)pyrazolyl-4-boronic acid pinacol ester;1-boc-pyrazolyl-4-boronic acid pinacol ester;1-(tert-butoxycarbonyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole;1-boc-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole;2-(1-boc-4-pyrazolyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane;2-(1-tert-butoxycarbonyl-4-pyrazolyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane;tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole-1-carboxylate;4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1h-pyrazole-1-carboxylic acid tert-butyl ester | 552846-17-0 | 1G | 33元 |
| 2024/11/08 | 38464 | 4-(4455四甲基-132-二氧硼戊環(huán)2基)1H吡唑1羧酸叔丁基酯 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylic Acid Tert-Butyl Ester, 97%, Thermo Scientific Chemicals | 552846-17-0 | 1g | 833元 |