Tandem Cycloaddition of Azides to 3,3-Diaminoacrylonitriles (2-Cyanoacetamidines) and Cornforth-Type Rearrangement as an Approach to 5-Amino-1,2,3-triazole-4-N-substituted Imidamides

Standard

Tandem Cycloaddition of Azides to 3,3-Diaminoacrylonitriles (2-Cyanoacetamidines) and Cornforth-Type Rearrangement as an Approach to 5-Amino-1,2,3-triazole-4-N-substituted Imidamides. / Silaichev, Pavel S.; Beryozkina, Tetyana V.; Ilkin, Vladimir et al.
In: Journal of Organic Chemistry, Vol. 88, No. 13, 07.07.2023, p. 8163-8174.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{bf1fa4132616439ab375b1872fba17fd,

title = "Tandem Cycloaddition of Azides to 3,3-Diaminoacrylonitriles (2-Cyanoacetamidines) and Cornforth-Type Rearrangement as an Approach to 5-Amino-1,2,3-triazole-4-N-substituted Imidamides",

abstract = "An efficient base-catalyzed, metal-free method for thesynthesisof 5-amino-1,2,3-triazole-4-N-sulfonyl- and arylimidamides,directed by the structure of the amidine group, has been developed.It is based on a previously unknown tandem process involving cycloadditionreaction to 3,3-diaminoacrylonitriles (2-cyanoacetamidines) with aryl(alkyl)sulfonylor aryl azides and Cornforth-type rearrangement. During the reactionoptimization, different factors were found to facilitate the titlereaction, which include the use of a strong base and N-mono- or N,N & PRIME;-disubstituted3,3-diaminoacrylonitriles. The reaction is tolerant to variously N-monosubstituted and N,N & PRIME;-disubstituted 3,3-diaminoacrylonitriles and to various aryl-and aryl/alkyl sulfonyl azides. The developed method has a broad scopeand can be applied to obtain a variety of 5-amino-1,2,3-triazole-4-carbimidamidesbearing at the N-1 position alkyl, allyl, propargyl, benzyl,cycloalkyl, and heteroaryl substituents and sulfonyl and aryl substituentsat the amidine group. Post-cyclization reactions of prepared 5-amino-1,2,3-triazoleswith DMF-DMA DMA-DMF leads to 1,2,3-triazolo[4,5-d]pyrimidines, 8-aza purine analogues demonstrating the applicabilityof the prepared compounds in organic synthesis.",

author = "Silaichev, {Pavel S.} and Beryozkina, {Tetyana V.} and Vladimir Ilkin and Novikov, {Mikhail S.} and Wim Dehaen and Bakulev, {Vasiliy A.}",

note = "We gratefully acknowledge financial support of this work by the Russian Science Foundation (18-13-00161).",

year = "2023",

month = jul,

day = "7",

doi = "10.1021/acs.joc.3c00151",

language = "English",

volume = "88",

pages = "8163--8174",

journal = "Journal of Organic Chemistry",

issn = "0022-3263",

publisher = "American Chemical Society",

number = "13",

}

RIS

TY - JOUR

T1 - Tandem Cycloaddition of Azides to 3,3-Diaminoacrylonitriles (2-Cyanoacetamidines) and Cornforth-Type Rearrangement as an Approach to 5-Amino-1,2,3-triazole-4-N-substituted Imidamides

AU - Silaichev, Pavel S.

AU - Beryozkina, Tetyana V.

AU - Ilkin, Vladimir

AU - Novikov, Mikhail S.

AU - Dehaen, Wim

AU - Bakulev, Vasiliy A.

N1 - We gratefully acknowledge financial support of this work by the Russian Science Foundation (18-13-00161).

PY - 2023/7/7

Y1 - 2023/7/7

N2 - An efficient base-catalyzed, metal-free method for thesynthesisof 5-amino-1,2,3-triazole-4-N-sulfonyl- and arylimidamides,directed by the structure of the amidine group, has been developed.It is based on a previously unknown tandem process involving cycloadditionreaction to 3,3-diaminoacrylonitriles (2-cyanoacetamidines) with aryl(alkyl)sulfonylor aryl azides and Cornforth-type rearrangement. During the reactionoptimization, different factors were found to facilitate the titlereaction, which include the use of a strong base and N-mono- or N,N & PRIME;-disubstituted3,3-diaminoacrylonitriles. The reaction is tolerant to variously N-monosubstituted and N,N & PRIME;-disubstituted 3,3-diaminoacrylonitriles and to various aryl-and aryl/alkyl sulfonyl azides. The developed method has a broad scopeand can be applied to obtain a variety of 5-amino-1,2,3-triazole-4-carbimidamidesbearing at the N-1 position alkyl, allyl, propargyl, benzyl,cycloalkyl, and heteroaryl substituents and sulfonyl and aryl substituentsat the amidine group. Post-cyclization reactions of prepared 5-amino-1,2,3-triazoleswith DMF-DMA DMA-DMF leads to 1,2,3-triazolo[4,5-d]pyrimidines, 8-aza purine analogues demonstrating the applicabilityof the prepared compounds in organic synthesis.

AB - An efficient base-catalyzed, metal-free method for thesynthesisof 5-amino-1,2,3-triazole-4-N-sulfonyl- and arylimidamides,directed by the structure of the amidine group, has been developed.It is based on a previously unknown tandem process involving cycloadditionreaction to 3,3-diaminoacrylonitriles (2-cyanoacetamidines) with aryl(alkyl)sulfonylor aryl azides and Cornforth-type rearrangement. During the reactionoptimization, different factors were found to facilitate the titlereaction, which include the use of a strong base and N-mono- or N,N & PRIME;-disubstituted3,3-diaminoacrylonitriles. The reaction is tolerant to variously N-monosubstituted and N,N & PRIME;-disubstituted 3,3-diaminoacrylonitriles and to various aryl-and aryl/alkyl sulfonyl azides. The developed method has a broad scopeand can be applied to obtain a variety of 5-amino-1,2,3-triazole-4-carbimidamidesbearing at the N-1 position alkyl, allyl, propargyl, benzyl,cycloalkyl, and heteroaryl substituents and sulfonyl and aryl substituentsat the amidine group. Post-cyclization reactions of prepared 5-amino-1,2,3-triazoleswith DMF-DMA DMA-DMF leads to 1,2,3-triazolo[4,5-d]pyrimidines, 8-aza purine analogues demonstrating the applicabilityof the prepared compounds in organic synthesis.

UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=001013699100001

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85156090251

U2 - 10.1021/acs.joc.3c00151

DO - 10.1021/acs.joc.3c00151

M3 - Article

VL - 88

SP - 8163

EP - 8174

JO - Journal of Organic Chemistry

JF - Journal of Organic Chemistry

SN - 0022-3263

IS - 13

ER -

ID: 41604326