The origin of a common compound about 119707-74-3

From this literature《One catalyst for two distinct reactions: sequential asymmetric hetero Diels-Alder reaction and diethylzinc addition》,we know some information about this compound(119707-74-3)Electric Literature of C20H12Br2O2, but this is not all information, there are many literatures related to this compound(119707-74-3).

Du, Haifeng; Zhang, Xue; Wang, Zheng; Ding, Kuiling published an article about the compound: (S)-3,3′-Dibromo-1,1′-bi-2-naphthol( cas:119707-74-3,SMILESS:OC1=C(Br)C=C2C=CC=CC2=C1C3=C4C=CC=CC4=CC(Br)=C3O ).Electric Literature of C20H12Br2O2. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:119707-74-3) through the article.

This paper describes the successful development of a series of chiral zinc catalysts containing (R)-3,3′-Br2-BINOL ligand and various diimine activators for enantioselective HDA reaction of Danishefsky’s diene with aldehydes through a combinatorial approach, affording the corresponding 2,3-dihydro-4H-pyran-4-one derivatives in excellent yields and enantioselectivities. The application of this type of catalysis was also extended to the diethylzinc addition to the benzaldehyde, affording the corresponding secondary alc. with up to 94.5% ee under optimized conditions. On the basis of these facts, the integration of two distinct enantioselective reactions, HDA and diethylzinc addition reactions, has been realized in one-pot with the promotion of a single chiral zinc catalyst in a sequential manner. The impact of diimine additive on the catalytic system of HDA reaction was also investigated by probing the nonlinear effect of reaction system. The pos. nonlinear effect exhibited in the catalytic system could be attributed to the poor solubility of the heterochiral zinc species. On the basis of various exptl. findings disclosed in this research, a possible mechanism for the asym. induction in the 3,3′-Br2-BINOL/Zn/diimine catalyzed enantioselective HDA reaction of Danishefsky’s diene with aldehydes was outlined.

From this literature《One catalyst for two distinct reactions: sequential asymmetric hetero Diels-Alder reaction and diethylzinc addition》,we know some information about this compound(119707-74-3)Electric Literature of C20H12Br2O2, but this is not all information, there are many literatures related to this compound(119707-74-3).

Reference:
Bromide – Wikipedia,
bromide – Wiktionary