This review presents a survey of new high specific activity tritium
labeling reagents and methodologies developed in recent years and
their applications to tritium labeling chemistry. The review is
organized on the basis of reagent type, its development and applications.
Emphasis is placed on the synthetic applications of the reagents
and techniques that have an exceptionally high capability to produce
high specific activity tritium labeled compounds. The focus of this
review is on chemical labeling syntheses and does not include heterogeneous/homogeneous
metal-catalyzed hydrogen-tritium exchange and biochemical reactions.
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1 Introduction
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2 Synthesis and Applications of Tritiated Hydrides
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2.1 Lithium, Sodium, and Potassium Borotritide Reagents (LiBT4,
NaBT4, KBT4)
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2.2 Lithium Tritide (LiT)
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2.3 Lithium Supertritide (LiEt3BT)
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2.4 Lithium Aluminum Tritide (LiAlT4)
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2.5 Lithium Selectride [Li(sec-Bu)3BT]
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2.6 Lithium Trimethoxyborotritide [Li(OCH3)3BT]
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2.7 Tritiated [2-(1,3-Dithianyl)]myrtanylborane
(MDBT2)
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2.8 Tritiated Methylborane (CH3BT2)
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2.9 Tritiated Lithium 9-Boratabicyclo[3.3.1]nonane
(Li9-BBNT)
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2.10 Tritiated BoraneTHF Complex (BT3THF)
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2.11 Lithium Borotritide (LiBT4)
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2.12 Tritiated Schwartz’ Reagent (ZrCp2ClT)
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2.13 Tritiated Silanes
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2.14 Tributyltin tritide (Bu3SnT)
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2.15 Tritiated Triacetoxy Sodium Borotritide [NaBT(OAc)3]
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3 Synthesis and Applications of Tritiated Water
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3.1 Tritiated Water (T2O)
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3.2 Tritiated Methylene Diiodide (CHTI2)
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3.3 Tritiated Diimide (TN=NT)
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3.4 Tritioolefination
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3.5 Base-Induced Tritiodesilylation
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3.6 Fluoride-Induced Tritiodesilylation
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3.7 Tritiated Diazomethane (CHTN2)
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4 Catalytic Tritiations with Tritium Gas
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4.1 Catalytic Tritiodehalogenation
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4.2 Heterogeneous Catalytic Tritiations
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4.3 Homogeneous Catalytic Tritiations
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5 Tritium Labeling via Organometallic Compounds
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5.1 Metallation/Reduction with Tritium Gas
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5.2 Metallation/Reduction with Tritiated Water
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6 Conclusion
tritiated hydrides - heterogeneous catalytic tritiations - high specific activity -