Molecules 2013, 18(10), 12346-12367; doi:10.3390/molecules181012346
Article

Synthesis of Boron-Containing Primary Amines

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Received: 30 August 2013; in revised form: 27 September 2013 / Accepted: 30 September 2013 / Published: 8 October 2013
(This article belongs to the Section Theoretical Chemistry)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: In this study, boron-containing primary amines were synthesized for use as building blocks in the study of peptoids. In the first step, Gabriel synthesis conditions were modified to enable the construction of seven different aminomethylphenyl boronate esters in good to excellent yields. These compounds were further utilized to build peptoid analogs via an Ugi four-component reaction (Ugi-4CR) under microwave irradiation. The prepared Ugi-4CR boronate esters were then successfully converted to the corresponding boronic acids. Finally, the peptoid structures were successfully modified by cross-coupling to aryl/heteroaryl chlorides via a palladium-mediated Suzuki coupling reaction to yield the corresponding derivatives in moderate to good yields.
Keywords: boron; multicomponent reactions; Gabriel synthesis; Ugi reaction; peptoid
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MDPI and ACS Style

Chung, S.-H.; Lin, T.-J.; Hu, Q.-Y.; Tsai, C.-H.; Pan, P.-S. Synthesis of Boron-Containing Primary Amines. Molecules 2013, 18, 12346-12367.

AMA Style

Chung S-H, Lin T-J, Hu Q-Y, Tsai C-H, Pan P-S. Synthesis of Boron-Containing Primary Amines. Molecules. 2013; 18(10):12346-12367.

Chicago/Turabian Style

Chung, Sheng-Hsuan; Lin, Ting-Ju; Hu, Qian-Yu; Tsai, Chia-Hua; Pan, Po-Shen. 2013. "Synthesis of Boron-Containing Primary Amines." Molecules 18, no. 10: 12346-12367.

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