نتایج جستجو برای: water one pot reactions
تعداد نتایج: 2601219 فیلتر نتایج به سال:
An efficient three-component one-pot synthesis of 1-amidoalkyl-2-naphthols from 2-naphthol, aldehydes, and acetamide using nano-SnO2as catalyst is described. The reactions were carried out at 80oC under water-solvent media. The structures of the compounds were characterized by IR, 1HNMR, 13C-NMR, and Mass spectra and by elemental analysis. The advantages of the effective meth...
Combining enzymatic and single-metal-atom catalysis is a promising approach for green chemical synthesis. We herein report one-pot chemoenzymatic cascade reaction to asymmetric synthesize (R)-1-(4-biphenyl) ethanol by using the highly active selective enzyme-metal-single-atom hybrid as catalyst. demonstrate that Pd single atoms anchored lipase (Pd1/CALB-P) can efficiently drive reactions in aqu...
[reactions: see text] One-pot total syntheses of the quinazolinobenzodiazepine alkaloids sclerotigenin (1), (+/-)-circumdatin F (2), and (+/-)-asperlicin C (3) via novel microwave-assisted domino reactions were achieved in 55%, 32%, and 20% yields, respectively, from commercially available starting materials. A two-step total synthesis of (+/-)-benzomalvin A (4) was accomplished with an overall...
Chemoenzymatic reaction cascades can provide access to chiral compounds from low-cost starting materials in one pot. Here we describe one-pot asymmetric routes to tetrahydroisoquinoline alkaloids (THIAs) using the Pictet–Spenglerase norcoclaurine synthase (NCS) followed by a cyclisation, to give alkaloids with two new heterocyclic rings. These reactions operated with a high atom economy to gene...
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