1-甲基-6,7-二甲氧基-3,4-二氢异喹啉 | 4721-98-6

• 物质功能分类: 医药中间体 - 杂环化合物 - 异喹啉类化合物
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氢异喹啉
• 中文名称: 1-甲基-6,7-二甲氧基-3,4-二氢异喹啉
• 英文名称: 6,7-dimethoxy-1-methyl-3,4-dihydroisoquinoline
• 英文别名: 1-methyl-6,7-dimethoxy-3,4-dihydroisoquinoline；dehydrosalsolidine；1-methyl-3,4-dihydro-6,7-dimethoxyisoquinoline；3,4-dihydro-6,7-dimethoxy-1-methylisoquinoline
• CAS: 4721-98-6
• 化学式: C₁₂H₁₅NO₂
• mdl: MFCD00040276
• 分子量: 205.257
• InChiKey: VASUQTGZAPZKFK-UHFFFAOYSA-N

物化性质

• 熔点：
  103-106 °C
• 沸点：
  343.93°C (rough estimate)
• 密度：
  1.0958 (rough estimate)
• 稳定性/保质期：
  在常温常压下保持稳定，应避免与不相容的材料及强氧化剂接触。

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.416
• 拓扑面积：
  30.8
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 危险品标志：
  Xn
• 安全说明：
  S22,S26,S36/37/39
• 危险类别码：
  R22,R36/37/38
• 海关编码：
  2933499090
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335
• 储存条件：
  密封储存，应存放于阴凉、干燥的仓库中。

SDS

Name:	1-Methyl-6 7-Dimethoxy-3 4-Dihydroisoquinoline 99+% Material Safety Data Sheet
Synonym:	None Known
CAS:	4721-98-6

Section 1 - Chemical Product MSDS Name:1-Methyl-6 7-Dimethoxy-3 4-Dihydroisoquinoline 99+% Material Safety Data Sheet
Synonym:None Known

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Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS

CAS#	Chemical Name	content	EINECS#
4721-98-6	1-Methyl-6,7-Dimethoxy-3,4-Dihydroisoq	99+%	unlisted

Hazard Symbols: None Listed.
Risk Phrases: None Listed.

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Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
The toxicological properties of this material have not been fully investigated.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation.
Ingestion:
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.
Inhalation:
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
Chronic:
No information found.

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Section 4 - FIRST AID MEASURES
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:

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Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Runoff from fire control or dilution water may cause pollution.
Extinguishing Media:
Use agent most appropriate to extinguish fire.

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Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions.
Provide ventilation.

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Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Storage:
Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

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Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use process enclosure, local exhaust ventilation, or other engineering controls to control airborne levels.
Exposure Limits CAS# 4721-98-6: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to minimize contact with skin.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

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Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Crystalline powder
Color: very slightly yellow
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 108.00 - 109.00 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density:
Molecular Formula: C12H15NO2
Molecular Weight: 205.26

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Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, dust generation, excess heat, strong oxidants.
Incompatibilities with Other Materials:
Oxidizing agents.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Hazardous Polymerization: Has not been reported

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Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 4721-98-6 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
1-Methyl-6,7-Dimethoxy-3,4-Dihydroisoquinoline - Not listed by ACGIH, IARC, or NTP.

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Section 12 - ECOLOGICAL INFORMATION

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Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.

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Section 14 - TRANSPORT INFORMATION

IATA
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing Group:
IMO
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing Group:
RID/ADR
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing group:

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Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 4721-98-6: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 4721-98-6 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 4721-98-6 is not listed on the TSCA inventory.
It is for research and development use only.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  1-甲基-6,7-二甲氧基-3,4-二氢异喹啉 在 氢氧化钾 作用下， 以 甲醇 、 水 为溶剂， 反应 1.5h， 生成 1-Hex-5-ynyl-6,7-dimethoxy-3,4-dihydro-isoquinoline
  参考文献：
  名称：

  通过分子内亚氨酸甲酯亚甲基1,3-偶极环加成反应合成生物碱

  摘要：

  描述了神经毒性的毒扁豆碱生物碱d，1-塞孔的简明合成，其依赖于分子内环加成反应，该反应涉及“未稳定的”亚氨酸酯亚甲基和未活化的烯烃。通过偶合和偶极亲和体在芳基核上的邻位排列加强的刚性排列，增强了这种环化的便利性。在尝试合成赤藓骨架的过程中揭示了这种环形方法的合成局限性。在这种情况下，亚胺酸酯亚甲基的质子性重排为异构烯胺，从而排除了所需的环化反应。

  DOI：

  10.1016/s0040-4020(01)96709-2
• 作为产物：
  描述：

  6,7-二甲氧基-3,4-二氢异喹啉 在 盐酸 、 双(三甲基硅烷基)氨基钾 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 反应 3.0h， 生成 1-甲基-6,7-二甲氧基-3,4-二氢异喹啉
  参考文献：
  名称：

  通过 α-氨基腈的烷基化合成 (-)-(S)-去甲月桂苷、(+)-(R)-O,O-二甲基椰油碱和 (+)-(R)-Salsolidine

  摘要：

  1-取代的 1,2,3,4-四氢异喹啉生物碱的短不对称合成描述了通过未保护的 α-氨基腈的去质子化和所得碳负离子的烷基化，然后自发消除 HCN 和不对称还原。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)

  DOI：

  10.1002/ejoc.200700261

文献信息

• The synthesis of annulated 4-quinolizinones by two sequential anionic cyclizations
  作者：Thomas Nicola、Diemut Schwarzrock、Manfred Keller、Wolfgang Eberbach

  DOI：10.1016/s0040-4020(01)00005-9

  日期：2001.2

  Upon base treatment of N-hetaryl substituted heptynone esters of type 9 an efficient ring closure takes place affording cyclohexenone derivatives 11 which undergo a further anionic cyclization to provide tri- and tetracyclic quinolizinone derivatives 12 as final products.

  在对类型9的N-杂芳基取代的庚酮酯进行碱处理后，发生有效的闭环，得到环己烯酮衍生物11，其经过进一步的阴离子环化以提供三和四环喹啉嗪酮衍生物12作为最终产物。
• A Titanium(III)-Catalyzed Reductive Umpolung Reaction for the Synthesis of 1,1-Disubstituted Tetrahydroisoquinolines
  作者：Hieu-Trinh Luu、Stefan Wiesler、Georg Frey、Jan Streuff

  DOI：10.1021/acs.orglett.5b00987

  日期：2015.5.15

  presented that gives direct access to 1,1-disubstituted tetrahydroisoquinolines. The reaction is a titanium(III)-catalyzed reductive umpolung process in which nitriles act as effective acylation agents. The method is highly chemo- and regioselective and is demonstrated in 20 examples. It is well-suited for the large-scale synthesis of functionalized tetrahydroisoquinoline products, which is exemplified in

  提出了3，4-二氢异喹啉的催化还原性C 1酰化，其可直接获得1，1-二取代的四氢异喹啉。该反应是钛（III）催化的还原性物质化工艺，其中腈充当有效的酰化剂。该方法具有高度的化学选择性和区域选择性，并在20个实例中得到了证明。它非常适合大规模合成官能化的四氢异喹啉产物，以（±）-3-脱甲氧基赤藓醇二酮的六步合成形式例举。
• Synthesis and spectroscopic studies of some hydrogenated thiazolo[2,3- a ]isoquinolines
  作者：Maria D Rozwadowska、Agnieszka Sulima

  DOI：10.1016/s0040-4020(01)00224-1

  日期：2001.4

  4-dihydroisoquinoline derivatives under the action of α-mercapto alkanoic acids or ethylene sulfide, respectively. In the synthesis of compounds 2 and 5 isothiocarbostril (13) and N-thioacetyl-β-phenylethylamine derivatives (14), respectively, were also used as substrates and treated with bromoacetic acid derivatives. Spectral characteristics (IR, 1H, 13C NMR and MS) of compounds 1–12 are presented.

  二氢-5- ħ -噻唑并[2,3-一个]异喹啉酮（1 - 6）和四氢-5- ħ -噻唑并[2,3一]异喹啉（7 - 12）已经从下3,4-二氢异喹啉衍生物制备α-巯基链烷酸或亚乙基硫的作用。在化合物2和5的合成中，异硫脲化合物（13）和N-硫代乙酰基-β-苯乙胺衍生物（14）也分别用作底物，并用溴乙酸衍生物处理。光谱特性（IR，1 H，给出了化合物1 – 12的13 C NMR和MS）。
• [EN] NAMPT MODULATORS<br/>[FR] MODULATEURS DE NAMPT
  申请人：CYTOKINETICS INC

  公开号：WO2021159015A1

  公开（公告）日：2021-08-12

  Provided are compounds of Formula (II) or a pharmaceutically acceptable salt thereof, wherein R1, R2, R3, R4, R5, R6, and p are as defined herein. Also provided is a pharmaceutically acceptable composition comprising a compound of Formula (II), or a pharmaceutically acceptable salt thereof. Also provided are methods of using a compound of Formula (II), or a pharmaceutically acceptable salt thereof.

  提供了公式（II）的化合物或其药用可接受盐，其中R1、R2、R3、R4、R5、R6和p如本文所定义。还提供了包含公式（II）化合物或其药用可接受盐的药用可接受组合物。还提供了使用公式（II）化合物或其药用可接受盐的方法。
• Indium metal as a reducing agent in organic synthesis
  作者：Michael R. Pitts、Justin R. Harrison、Christopher J. Moody

  DOI：10.1039/b101712h

  日期：——

  aromatic nitro compounds under similar conditions results in selective reduction of the nitro groups; ester, nitrile, amide and halide substituents are unaffected. Likewise indium in aqueous ethanolic ammonium chloride is an effective method for the deprotection of 4-nitrobenzyl ethers and esters. Indium is also an effective reducing agent under non-aqueous conditions and α-oximino carbonyl compounds can

  铟的低第一电离能（5.8 eV）及其对空气和水的稳定性表明，这种金属元素应是有机基材的有用还原剂。使用铟金属还原C描述了肟，硝基化合物和共轭烯烃的亚胺中的N键，苯并稠合的氮杂环中的杂环以及4-硝基苄基保护基的去除。因此，使用乙醇氯化铵水溶液中的铟金属选择性地还原喹啉，异喹啉和喹喔啉中的杂环。在相似条件下处理一系列芳香族硝基化合物会导致硝基的选择性还原；酯，腈，酰胺和卤化物取代基不受影响。同样地，乙醇乙醇铵水溶液中的铟是使4-硝基苄基醚和酯脱保护的有效方法。铟在非水条件下也是有效的还原剂，α-肟基羰基化合物可以选择性地还原为相应的N-在乙酸酐或二碳酸二叔丁酯存在下，用铟粉，乙酸在THF中的叔胺保护。在THF-乙酸中的铟也会还原共轭烯烃。

表征谱图