公开(公告)号：US4847392A

公开(公告)日：1989-07-11

申请号：US26862

申请日：1987-03-17

Applicant: Paul G. Gassman ,  Daniel A. Singleton

Inventor： Paul G. Gassman ,  Daniel A. Singleton

IPC: C07C43/305 ,  C07D317/12

CPC classification number: C07C43/305 ,  C07D317/12

Abstract: A method of conducting a Diels-Alder reaction is provided comprising reacting a Diels-Alder diene comprising a 1,3-conjugated diene with a dienophile comprising an alpha,beta-unsaturated acetal or ketal in the presence of a protonating acid to yield a [4+2] cycloadduct.

Abstract translation: 提供了进行Diels-Alder反应的方法，包括在质子化酸存在下使包含1,3-共轭二烯的Diels-Alder二烯与包含α，β-不饱和缩醛或缩酮的亲二烯体反应， 4 + 2]环加成物。

公开(公告)号：US4513141A

公开(公告)日：1985-04-23

申请号：US489689

申请日：1983-04-28

Applicant: Daniel J. Brunelle ,  Daniel A. Singleton

Inventor： Daniel J. Brunelle ,  Daniel A. Singleton

IPC: C07C41/01 ,  B01J31/00 ,  B01J31/02 ,  C07B31/00 ,  C07B41/04 ,  C07B61/00 ,  C07C41/00 ,  C07C41/16 ,  C07C43/20 ,  C07C43/257 ,  C07C43/263 ,  C07C67/00 ,  C07C201/12 ,  C07C205/38 ,  C07D209/48 ,  C07D213/74 ,  C07B29/00 ,  C07D207/444

CPC classification number: C07D209/48 ,  C07C201/12 ,  C07D213/74

Abstract: A method is provided for making aromatic ethers by effecting the displacement of reactive radicals on an activated aromatic nucleus such as a phthalimide with a mono or bisalkali metal phenoxide in the presence of an organic solvent and a dialkylamino branched alkyl substituted pyridinium salt as a phase transfer catalyst. Improved yields of bis(aromatic ethers) are achieved without the production of undesirable by-products, such as alkylated phenols.

Abstract translation: 提供了一种通过在有机溶剂和二烷基氨基支链烷基取代的吡啶鎓盐作为相转移的存在下通过使活性芳族核（例如邻苯二甲酰亚胺）与单碱金属或双碱金属酚盐进行置换而制备芳族醚的方法 催化剂。 实现双（芳族醚）的提高的收率，而不产生不期望的副产物，例如烷基化酚。

公开(公告)号：US4605745A

公开(公告)日：1986-08-12

申请号：US685512

申请日：1984-12-24

Applicant: Daniel J. Brunelle ,  Daniel A. Singleton

Inventor： Daniel J. Brunelle ,  Daniel A. Singleton

IPC: C07C41/16 ,  C07C201/12 ,  C07C205/38 ,  C07D209/48 ,  C07D213/74 ,  C07B41/00 ,  C07B43/00 ,  C07D401/04

CPC classification number: C07D209/48 ,  C07C205/38 ,  C07D213/74

Abstract: A method is provided for making aromatic ethers by effecting the displacement of reactive radicals on an activated aromatic nucleus such as a phthalimide with a mono or bisalkali metal phenoxide in the presence of an organic solvent and a dialkylamino branched alkyl substituted pyridinium salt as a phase transfer catalyst. Improved yields of bis(aromatic ethers) are achieved without the production of undesirable by-products, such as akylated phenols.

Abstract translation: 提供了一种通过在有机溶剂和二烷基氨基支链烷基取代的吡啶鎓盐作为相转移的存在下通过使活性芳族核（例如邻苯二甲酰亚胺）与单碱金属或双碱金属酚盐进行置换而制备芳族醚的方法 催化剂。 在不产生不期望的副产物如烷基化酚的情况下实现了双（芳族醚）的提高的收率。