二丁基二碲 - CAS号 77129-69-2

物化性质

沸点：

93 °C (0.5 mmHg)
稳定性/保质期：

遵照规定使用和储存，则不会发生分解。

计算性质

辛醇/水分配系数(LogP)：

2.75
重原子数：

10
可旋转键数：

7
环数：

0.0
sp3杂化的碳原子比例：

1.0
拓扑面积：

0
氢给体数：

0
氢受体数：

0

安全信息

危险品标志：

Xn
安全说明：

S36/37
危险类别码：

R20/21/22
海关编码：

2931900090
储存条件：

存放于阴凉干燥处。

SDS

SDS：556ec32b5526e7c48d5fd2f535a3a908

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Name:	Dibutyl ditelluride Material Safety Data Sheet
Synonym:
CAS:	77129-69-2

Section 1 - Chemical Product MSDS Name:Dibutyl ditelluride Material Safety Data Sheet
Synonym:

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS

CAS#	Chemical Name	content	EINECS#
77129-69-2	Dibutyl ditelluride		unlisted

Hazard Symbols: XN
Risk Phrases: 20/21/22

Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Harmful by inhalation, in contact with skin and if swallowed.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation. Harmful if absorbed through the skin.
Ingestion:
Harmful if swallowed. May cause irritation of the digestive tract.
Inhalation:
Harmful if inhaled. May cause respiratory tract irritation.
Chronic:
Not available.

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.
Ingestion:
Get medical aid. Wash mouth out with 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:
Treat symptomatically and supportively.

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.
Extinguishing Media:
Use water spray, dry chemical, carbon dioxide, or chemical foam.

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. Avoid generating dusty conditions.

Section 7 - HANDLING and STORAGE
Handling:
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage:
Store in a cool, dry place. Store in a tightly closed container.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 77129-69-2: Personal Protective Equipment Eyes: Not available.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
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.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Not available.
Color: Not available.
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 93 deg C @ 0.5 mmHg
Freezing/Melting Point: Not available.
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: C8H18Te2
Molecular Weight: 369.43

Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Strong oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide, tellurium fumes.
Hazardous Polymerization: Has not been reported

Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 77129-69-2 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
Dibutyl ditelluride - Not listed by ACGIH, IARC, or NTP.

Section 12 - ECOLOGICAL INFORMATION

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

Section 14 - TRANSPORT INFORMATION

IATA
Shipping Name: Tellurium compound, n.o.s.*
Hazard Class: 6.1
UN Number: 3284
Packing Group: III
IMO
Shipping Name: Tellurium compound, n.o.s.
Hazard Class: 6.1
UN Number: 3284
Packing Group: III
RID/ADR
Shipping Name: TELLURIUM COMPOUND, N.O.S.
Hazard Class: 6.1
UN Number: 3284
Packing group: III

Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN
Risk Phrases:
R 20/21/22 Harmful by inhalation, in contact with
skin and if swallowed.
Safety Phrases:
S 36/37 Wear suitable protective clothing and
gloves.
WGK (Water Danger/Protection)
CAS# 77129-69-2: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 77129-69-2 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 77129-69-2 is not listed on the TSCA inventory.
It is for research and development use only.

SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

作为反应物：

描述：

二丁基二碲在 lithium 作用下，以四氢呋喃为溶剂，反应 1.0h，生成 lithium n-butyl tellurolate

参考文献：

名称：

Bildstein, Benno; Irgolic, Kurt J.; O'Brien, Daniel H., Phosphorus and Sulfur and the Related Elements, 1988, vol. 38, p. 245 - 256

摘要：

DOI：
作为产物：

描述：

正溴丁烷在碘、 magnesium 、碲化氢作用下，以四氢呋喃为溶剂，反应 1.33h，以62%的产率得到二丁基二碲

参考文献：

名称：

含碲 (IV) 杂环的合成、机理阐明和生物学见解。

摘要：

受有机碲物质的合成和生物潜力的启发，合成并表征了一系列含有 Te-O 键的五元和六元环有机碲烷。理论计算阐明了参与形成杂环的氧化环化过程的机制，与氯转移到羟基碲化物一致，随后是环化步骤，同时形成新的 Te-O 键和 OH 基团的去质子化。此外，理论计算还表明反非对映异构体是两种含有手性中心的化合物的主要产物。针对亚马逊利什曼原虫前鞭毛体的抗利什曼原虫分析揭示了 1,2λ4 -oxatellurane LQ50 (IC50 =4.1±1.0; SI=12)、1,2λ4 -oxatellurane LQ04 (IC50 =7.0±1.3; SI=7) 和 1, 2λ4 -benzoxatellurole LQ56 (IC50 =5.7±0.3; SI=6) 作为比参考化合物更强大和更具选择性的化合物，活性高达四倍。由 125 Te NMR 分析支持的稳定性研究表明，这些杂环在水性有机介质中或在高达

DOI：

10.1002/chem.202102287
作为试剂：

描述：

苯甲醛在正丁基锂、二丁基二碲、重水、二异丁基氢化铝作用下，生成 benzyl alcohol-d1

参考文献：

名称：

Synthesis of Thiol, Selenol, and Tellurol Esters from Aldehydes by the Reaction with iBu2AlYR (Y = S, Se, Te)

摘要：

DOI：

10.1021/jo00098a053

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文献信息

Electrotelluration: A New Approach to Tri- and Tetrasubstituted Alkenes

作者：Joseph P. Marino、Hanh Nho Nguyen

DOI：10.1021/jo0110146

日期：2002.9.1

described in which a Michael addition of an alkyl or aryl tellurolate anion occurs onto an activated alkyne with subsequent trapping of a vinyl anion with electrophiles (aldehydes and ketones) other than a proton. This process provides an efficient regio- and stereospecific route to tri- and tetrasubstituted alkenes. Methodologically significant examples of this chemistry were studied in which aryl and alkyl

描述了一种新颖的电遥测方法，其中烷基或芳基碲酸根阴离子的迈克尔加成发生在活化的炔上，随后用质子以外的亲电子试剂（醛和酮）捕获乙烯基阴离子。该方法为三和四取代的烯烃提供了有效的区域和立体有择途径。研究了该化学方法学上的重要实例，其中在迈克尔反应中将芳基和烷基碲酸根阴离子添加到ω-酮炔基酯中，初始乙烯基阴离子被内部醛分子内捕获。反应中心被不同长度的烷基链束缚，以适度到良好的产率形成高度官能化的五，六，七和八元环。
Bulky Trialkylsilyl Acetylenes in the Cadiot−Chodkiewicz Cross-Coupling Reaction

作者：Joseph P. Marino、Hanh Nho Nguyen

DOI：10.1021/jo025745x

日期：2002.9.1

tert-butyldimethylsilyl (TBS), and triisopropylsilyl (TIPS) acetylenes underwent the Cadiot-Chodkiewicz cross-coupling reaction with different bromoalkynes to form a variety of synthetically useful unsymmetrical diynes in good yields. The diyne alcohol 10 was transformed regio- and stereoselectively into enynes by hydrotelluration, carbometalation, and reduction reactions.

庞大的三烷基甲硅烷基保护的炔烃，例如三乙基甲硅烷基（TES），叔丁基二甲基甲硅烷基（TBS）和三异丙基甲硅烷基（TIPS）乙炔，与不同的溴炔进行了Cadiot-Chodkiewicz交叉偶联反应，以良好的收率形成了各种合成有用的不对称二炔。二炔醇10通过加氢精制，碳金属化和还原反应被区域和立体选择性地转化为烯炔。
In Search of Catalytic Antioxidants—(Alkyltelluro)phenols, (Alkyltelluro)resorcinols, and Bis(alkyltelluro)phenols

作者：Jia-fei Poon、Vijay P. Singh、Lars Engman

DOI：10.1021/jo400703w

日期：2013.6.21

2-(alkyltelluro)resorcinols. Bis(alkyltelluro)phenols were accessed by allowing the trianion produced from the reaction of 2,6-dibromophenol with 5 equiv of tert-butyllithium to react with dialkyl ditellurides. The novel phenolic compounds were found to inhibit azo-initiated peroxidation of linoleic acid much more efficiently than α-tocopherol in a two-phase peroxidation system containing excess N-acetylcysteine

通过邻-（烷基碲基）苯酚淬灭过氧自由基的机理比正式的H原子转移更为复杂。为了改进这一概念，我们制备了（烷基碲）间苯二酚和双（烷基碲）苯酚，并评估了它们的催化链断裂和预防性抗氧化性能。使由2-溴苯酚和3当量的叔丁基锂产生的原位形成的三价阴离子与二烷基二碲化物反应，以低收率提供邻-（烷基碲基）苯酚。2- Bromoresorcinols与4当量的处理后叔丁基锂类似地得到2-（烷基碲）间苯二酚。通过使由2，6-二溴苯酚与5当量的叔丁基锂反应产生的三阴离子与二烷基二碲化物反应来获得双（烷基碲）苯酚。发现在包含过量N的两相过氧化系统中，新型酚类化合物比α-生育酚更有效地抑制亚油酸的偶氮引发的过氧化。-乙酰半胱氨酸在水相中作为化学计量的硫醇还原剂。大多数（烷基碲）酚和间苯二酚只能在89–228分钟内抑制过氧化，而某些双（烷基碲）酚则具有更高的可再生性，并提供> 410分钟的保护。还评估了新型（烷基碲）
Alkyltelluro Substitution Improves the Radical-Trapping Capacity of Aromatic Amines

作者：Jia-fei Poon、Jiajie Yan、Vijay P. Singh、Paul J. Gates、Lars Engman

DOI：10.1002/chem.201602377

日期：2016.8.26

The synthesis of a variety of aromatic amines carrying an ortho‐alkyltelluro group is described. The new antioxidants quenched lipidperoxyl radicals much more efficiently than α‐tocopherol and were regenerable by aqueous‐phase N‐acetylcysteine in a two‐phase peroxidation system. The inhibition time for diaryl amine 9 b was four‐fold longer than recorded with α‐tocopherol. Thiol consumption in the aqueous

描述了带有邻烷基碲基的各种芳香胺的合成。新的抗氧化剂比α-生育酚更有效地淬灭脂质过氧自由基，并且可以在两相过氧化系统中被水相N-乙酰半胱氨酸再生。二芳基胺9b的抑制时间比α-生育酚的抑制时间长四倍。发现水相中的硫醇消耗与抑制时间成反比，硫醇的可用性是抗氧化剂保护持续时间的限制因素。拟议的过氧自由基淬灭机理涉及在溶剂笼中O原子从过氧原子转移到Te，然后H原子从胺转移到烷氧基。
Copper-Catalyzed Synthesis of Unsymmetrical Diorganyl Chalcogenides (Te/Se/S) from Boronic Acids under Solvent-Free Conditions

作者：Sumbal Saba、Giancarlo Botteselle、Marcelo Godoi、Tiago Frizon、Fábio Galetto、Jamal Rafique、Antonio Braga

DOI：10.3390/molecules22081367

日期：——

The efficient and mild copper-catalyzed synthesis of unsymmetrical diorganyl chalcogenides under ligand- and solvent-free conditions is described. The cross-coupling reaction was performed using aryl boric acids and 0.5 equiv. of diorganyl dichalcogenides (Te/Se/S) in the presence of 3 mol % of CuI and 3 equiv. of DMSO, under microwave irradiation. This new protocol allowed the preparation of several

描述了在无配体和无溶剂条件下有效和温和的铜催化合成不对称二有机基硫属元素化物。使用芳基硼酸和 0.5 当量进行交叉偶联反应。在 3 mol % CuI 和 3 equiv. 存在下二有机基二硫属化物 (Te/Se/S) DMSO，在微波辐射下。这种新方案允许以良好到极好的收率制备几种不对称的二有机基硫属元素化物。

二丁基二碲 | 77129-69-2

分子结构分类

物化性质

计算性质

安全信息

SDS

反应信息

文献信息

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