In situ formation of vinylboranes for use in Diels Alder reactions. An easy one-pot Diels-Alder synthesis of cyclohexenols

1992 ◽  
Vol 57 (21) ◽  
pp. 5768-5771 ◽  
Author(s):  
Daniel A. Singleton ◽  
Jose P. Martinez ◽  
Grace M. Ndip
Keyword(s):  
Diels Alder ◽  
One Pot ◽  
In Situ Formation

One-Pot Synthesis of ABC Type Triblock Copolymers via in situ Click [3 + 2] and Diels−Alder [4 + 2] Reactions

2007 ◽  
Vol 40 (2) ◽  
pp. 191-198 ◽  
Author(s):  
Hakan Durmaz ◽  
Aydan Dag ◽  
Ozcan Altintas ◽  
Tuba Erdogan ◽  
Gurkan Hizal ◽  
...  
Keyword(s):  
Triblock Copolymers ◽  
Diels Alder ◽  
One Pot ◽  
One Pot Synthesis

scholarly journals Visible Light-Promoted Amide Bond Formation via One-Pot Nitrone in Situ Formation/Rearrangement Cascade

CCS Chemistry ◽  
2020 ◽  
pp. 2764-2771
Author(s):  
Bao-Gui Cai ◽  
Shuai-Shuai Luo ◽  
Lin Li ◽  
Lei Li ◽  
Jun Xuan ◽  
...  
Keyword(s):  
Visible Light ◽  
Bond Formation ◽  
Amide Bond ◽  
One Pot ◽  
Amide Bond Formation ◽  
In Situ Formation

Expeditious Scalable Catalyst-Free One-Pot Synthesis of 4-Alkoxy-5-amino-3-methylthiophene-2-carbonitriles via Sequential Reactions­ of Lithiated Alkoxyallenes with Isothiocyanates and 2-Bromoacetonitrile

Synthesis ◽  
2018 ◽  
Vol 50 (09) ◽  
pp. 1891-1900 ◽  
Author(s):  
Nina Nedolya ◽  
Boris Trofimov ◽  
Olga Tarasova ◽  
Alexander Albanov
Keyword(s):  
Intramolecular Cyclization ◽  
Thiophene Ring ◽  
One Pot ◽  
One Pot Synthesis ◽  
Convenient Approach ◽  
Reaction Proceeds ◽  
Sequential Addition ◽  
In Situ Formation ◽  
Cyano Groups

A synthetically simple and convenient approach to tetrasubstituted thiophenes with rare combination of the alkoxy, amino, and cyano groups has been developed. The assembly of polyfunctionalized thiophene ring is implemented in one preparative step by sequential addition of isothiocyanate and 2-bromoacetonitrile to the lithiated (with n-BuLi) alkoxyallene. The reaction proceeds through in situ formation and intramolecular cyclization of cyanomethyl 2-alkoxy-N-buta-2,3-dienimidothioate (1-aza-1,3,4-triene).

Cyclic Alkyne Approach to Heteroatom-Containing Polycyclic Aromatic Hydrocarbon Scaffolds

2019 ◽  
Author(s):  
Evan Darzi ◽  
Joyann Barber ◽  
Neil Garg
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Polycyclic Aromatic Hydrocarbon ◽  
Aromatic Hydrocarbon ◽  
Aromatic Hydrocarbons ◽  
Diels Alder ◽  
Pericyclic Reactions ◽  
One Pot ◽  
Synthetic Strategy ◽  
Polycyclic Aromatic

We report a modular synthetic strategy for accessing heteroatom-containing polycyclic aromatic hydrocarbons (PAHs) that relies on the controlled generation of transient heterocyclic alkynes and arynes. The strained intermediates undergo in situ trapping with readily accessible oxadiazinones. Four sequential pericyclic reactions occur, namely two Diels–Alder / retro-Diels–Alder sequences, which can be performed in a stepwise or one-pot fashion to assemble four new carbon–carbon (C–C) bonds.

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