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词条 Dimethylthiocarbamoyl chloride
释义

  1. Synthesis and reactions

  2. References

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| ImageFile = Me2NCSCl.svg
| ImageSize = 132
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|Section1={{Chembox Identifiers
| CASNo = 16420-13-6
| PubChem = 24848243
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|Section2={{Chembox Properties
| C=3|H=6|N=1|S=1|Cl=1
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| Appearance = yellow solid
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| MeltingPtC = 39-43
| BoilingPtC = 90-95
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}}Dimethylthiocarbamoyl chloride is an organosulfur compound with the formula (CH3)2NC(S)Cl. A yellow solid, it is often encountered as a yellow syrup. It is a key reagent in the synthesis of arylthiols via the Newman-Kwart rearrangement.[1]

Synthesis and reactions

Representative of other thiocarbamoyl chlorides, dimethylthiocarbamoyl chloride is electrophilic, serving as a source of R2NC(S)+.[2] It is analogous to dimethylcarbamoyl chloride (R2NC(O)Cl).

Dimethylthiocarbamoyl chloride is prepared by chlorination of the related tetramethylthiuram disulfide:

[Me2NC(S)]2S2 + 3 Cl2 → 2 Me2NC(S)Cl + 2 SCl2

Dimethylthiocarbamoyl chloride reacts with dithiocarbamates (R2NCS{{su|b=2|p=−}}) to give thiuram sulfides [R2NC(S)]2S. With methanethiolate, it gives methyl dimethyldithiocarbamate (Me2NC(S)SMe).

References

1. ^{{cite journal|title=Thiophenols from Phenols: 2-Naphthalenethiol|authors=Melvin S. Newman, Frederick W. Hetzel|journal=Org. Synth.|year=1971|volume=51|page=139|doi=10.15227/orgsyn.051.0139}}
2. ^R. J. Cremlyn “An Introduction to Organosulfur Chemistry” John Wiley and Sons: Chichester (1996). {{ISBN|0 471 95512 4}}

1 : Thiochlorides

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