Track topics on Twitter Track topics that are important to you
A chiral N-heterocyclic carbene (NHC)-catalyzed [4 + 2] annulation of γ-chloroenals and α-arylidene pyrazolinones was developed in the absence of expensive oxidants. The reaction proceeds smoothly via a vinyl enolate intermediate to afford spirocyclohexane pyrazolones in moderate to good yield (up to 86%) with high diastereoselectivities (up to 15:1 ) and excellent enantioselectivities (up to >99% ).
This article was published in the following journal.
Name: Organic letters
A general method to construct the scaffolds of dibenzooxazepine and dibenzodiazepine, through Pd-catalyzed isocyanide insertion and intramolecular C(sp2)-H activation, has been developed. This is the ...
An N-heterocyclic carbene (NHC) catalyzed formal [2+4] annulation reaction of aliphatic aldehydes with oxindole-derived α,β-unsaturated ketimines under oxidative condition is reported, affording spi...
A chiral Brønsted base-catalyzed asymmetric annulation of ortho-alkynylanilines has been developed to access axially chiral naphthyl-C2-indoles through vinylidene ortho-quinone methides (VQMs) interm...
The first Pd(II)-catalyzed asymmetric oxidative annulation of N-alkoxyaryl amides and 1,3-dienes is reported, which features particular applicability for quick assembly of different types of chiral he...
Precise control of the selectivity in organic synthesis is important to access desired molecule. We demonstrated a regiospecific annulation of asymmetric 1,2-di(arylethynyl)benzene derivatives for a g...
Study will evaluate the use of lower-limb assistive exo-skeletons worn on the ankle and foot. Participants will wear the exo-skeletons and walk in a safe environment. Measurements will be ...
The Beat Osteoporosis: Nourish and Exercise Skeletons (BONES) Project is an after-school program that includes weight loading physical activity, nutrition and bone health education, and ca...
The purpose of this study is to evaluate safety and efficacy of corneal cross-linking and photorefractive keratectomy for refractive correction in patients with bilateral asymmetric topogr...
The purpose of this study is to evaluate the effect of asymmetric spinal stabilization exercise on scoliosis
This study will assess changes in visual acuity and corneal symmetry after corneal collagen cross-linking (CXL) of asymmetric corneas.
A psychological theory based on dimensions or categories used by a given person in describing or explaining the personality and behavior of others or of himself. The basic idea is that different people will use consistently different categories. The theory was formulated in the fifties by George Kelly. Two tests devised by him are the role construct repertory test and the repertory grid test. (From Stuart Sutherland, The International Dictionary of Psychology, 1989)
A pyrazolone with analgesic, anti-inflammatory, and antipyretic properties but has risk of AGRANULOCYTOSIS. A breath test with 13C-labeled aminopyrine has been used as a non-invasive measure of CYTOCHROME P-450 metabolic activity in LIVER FUNCTION TESTS.
The ability to construct new ideas or images.
A group of degraded TRITERPENES which have lost ten carbons (8 from the side chain, C17, and one from C4) so have C20 skeletons which could be misinterpreted as DITERPENES. They especially occur in plants of the SIMAROUBACEAE family.
A genus of velvety smooth SPONGES in the family Suberitidae, characterized by the ectosomal and choanosomal skeletons dominated by tylostyles (pin-like spicules with a pinched bulbous end).