CAS: 2420-26-0; 4-Chloro-2-Hydroxybenzaldehyde

上下游产品

5-氯-2-甲基苯酚 5-Chloro-2-Methyl-Phenol 5306-98-9
4-氯-2-甲氧基苯甲醛 4-Chloro-2-Methoxybenzaldehyde 53581-86-5
4-氯水杨酸 4-Chlorosalicylic Acid 5106-98-9
水杨醛 Salicylaldehyde 90-02-8
4-氯-2-羟基苄醇 5-Chloro-2-(Hydroxymethyl)Phenol 64917-81-3
4-氯苯甲醛 4-Chlorobenzaldehyde 104-88-1

7-Chloro-2,2-Dimethyl-Benzo[1,3]Dioxin-4-One置于二异丁基氢化铝体系中,用 二氯甲烷 用作溶剂,化学反应 2.0H,以71%的收率获得4-氯-2-羟基苯甲醛
参考文献:Efficient And Selective Reduction Protocols Of The 2,2-Dimethyl-1,3-Benzodioxan-4-One Functional Group To Readily Provide Both Substituted Salicylaldehydes And 2-Hydroxybenzyl Alcohols
标题:Efficient And Selective Reduction Protocols Of The 2,2-Dimethyl-1,3-Benzodioxan-4-One Functional Group To Readily Provide Both Substituted Salicylaldehydes And 2-Hydroxybenzyl Alcohols
摘要:Two Complementary Procedures Have Been Developed That Selectively Allow For The Synthesis Of Either Substituted Salicylaldehydes Or The Corresponding 2-Hydroxylbenzyl Alcohols Upon Treatment Of The 2,2-Dimethyl-1,3-Benzodioxan-4-One Functional Group With Dibal-H Or Lah,Respectively.
Doi:10.1021/jo0601664

专利信息

专利号:US-4151201-A
优先权日:1976-08-13
标 题:Process for preparing 2-hydroxybenzoic aldehydes
发明人：CASIRAGHI GIOVANNI; CASNATI GIUSEPPE; PUGLIA GIUSEPPE; SARTORI GIOVANNI; TERENGHI GIULIANA
权利人:MONTEDISON SPA
摘要:There is disclosed a catalytic process for preparing, from phenols and formaldehyde 2-hydroxybenzoic aldehydes some of which are new in the art and, more particularly, a high-selectivity process for preparing the aldehydes by direct synthesis from phenols having at least a free ortho position and formaldehyde, in the presence of a catalyst consisting of anhydrous stannous and/or stannic chloride and of an aprotic binder.

专利号:CN-113024499-A
优先权日:2021-03-17
标 题 :A kind of green synthesis method of coumarin-3-carboxylic acid compounds